diff --git a/api/db.py b/api/db.py
index 987b8f3..cbceade 100644
--- a/api/db.py
+++ b/api/db.py
@@ -112,3 +112,11 @@ def dbInsert(user, token_info, params):
     except Exception as e:
         logger.error(f"Exception: {e}")
         raise werkzeug.exceptions.InternalServerError
+
+def dbUpdate(user, token_info, params):
+    logger.info("params: {}, token: {}".format(params, json.dumps(token_info)))
+    try:
+        return execDatabaseOperation(_opGetOne, params)
+    except Exception as e:
+        logger.error(f"Exception: {e}")
+        raise werkzeug.exceptions.InternalServerError
diff --git a/api/methods.py b/api/methods.py
index 4ecc2d5..0ddfb72 100644
--- a/api/methods.py
+++ b/api/methods.py
@@ -5,8 +5,9 @@
 # -----------------------------------------
 
 
-from db import dbGetMany, dbGetOne, dbInsert
+from db import dbGetMany, dbGetOne, dbInsert, dbUpdate
 from loguru import logger
+import werkzeug
 
 def get_accounts(user, token_info):
     return dbGetMany(user, token_info, {
@@ -57,6 +58,28 @@ SELECT
             "params": (accountId, )
         }
     )
+
+def update_account(user, token_info, accountId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE account_t
+  SET
+    description = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    accountId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_account: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_tenants(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -173,6 +196,58 @@ SELECT
             "params": (tenantId, )
         }
     )
+
+def update_tenant(user, token_info, tenantId=None, **args):
+  try:
+    body = args["body"]
+    v_salutation = body["salutation"]
+    v_firstname = body["firstname"]
+    v_lastname = body["lastname"]
+    v_address1 = body["address1"]
+    v_address2 = body["address2"]
+    v_address3 = body["address3"]
+    v_zip = body["zip"]
+    v_city = body["city"]
+    v_phone1 = body["phone1"]
+    v_phone2 = body["phone2"]
+    v_iban = body["iban"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE tenant_t
+  SET
+    salutation = %s
+    ,firstname = %s
+    ,lastname = %s
+    ,address1 = %s
+    ,address2 = %s
+    ,address3 = %s
+    ,zip = %s
+    ,city = %s
+    ,phone1 = %s
+    ,phone2 = %s
+    ,iban = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_salutation,
+    v_firstname,
+    v_lastname,
+    v_address1,
+    v_address2,
+    v_address3,
+    v_zip,
+    v_city,
+    v_phone1,
+    v_phone2,
+    v_iban,
+    tenantId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_tenant: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_premises(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -240,6 +315,37 @@ SELECT
             "params": (premiseId, )
         }
     )
+
+def update_premise(user, token_info, premiseId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    v_street = body["street"]
+    v_zip = body["zip"]
+    v_city = body["city"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE premise_t
+  SET
+    description = %s
+    ,street = %s
+    ,zip = %s
+    ,city = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    v_street,
+    v_zip,
+    v_city,
+    premiseId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_premise: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_flats(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -308,6 +414,37 @@ SELECT
             "params": (flatId, )
         }
     )
+
+def update_flat(user, token_info, flatId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    v_premise = body["premise"]
+    v_area = body["area"]
+    v_flat_no = body["flat_no"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE flat_t
+  SET
+    description = %s
+    ,premise = %s
+    ,area = %s
+    ,flat_no = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    v_premise,
+    v_area,
+    v_flat_no,
+    flatId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_flat: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_overhead_advances(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -376,6 +513,31 @@ SELECT
             "params": (overhead_advanceId, )
         }
     )
+
+def update_overhead_advance(user, token_info, overhead_advanceId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    v_enddate = body["enddate"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE overhead_advance_t
+  SET
+    description = %s
+    ,enddate = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    v_enddate,
+    overhead_advanceId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_overhead_advance: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_overhead_advance_flat_mappings(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -432,6 +594,8 @@ SELECT
             "params": (overhead_advance_flat_mappingId, )
         }
     )
+
+
 def get_parkings(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -488,6 +652,31 @@ SELECT
             "params": (parkingId, )
         }
     )
+
+def update_parking(user, token_info, parkingId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    v_premise = body["premise"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE parking_t
+  SET
+    description = %s
+    ,premise = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    v_premise,
+    parkingId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_parking: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_commercial_premises(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -544,6 +733,31 @@ SELECT
             "params": (commercial_premiseId, )
         }
     )
+
+def update_commercial_premise(user, token_info, commercial_premiseId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    v_premise = body["premise"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE commercial_premise_t
+  SET
+    description = %s
+    ,premise = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    v_premise,
+    commercial_premiseId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_commercial_premise: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_tenancys(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -630,6 +844,31 @@ SELECT
             "params": (tenancyId, )
         }
     )
+
+def update_tenancy(user, token_info, tenancyId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    v_enddate = body["enddate"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE tenancy_t
+  SET
+    description = %s
+    ,enddate = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    v_enddate,
+    tenancyId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_tenancy: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_fees(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -704,6 +943,31 @@ SELECT
             "params": (feeId, )
         }
     )
+
+def update_fee(user, token_info, feeId=None, **args):
+  try:
+    body = args["body"]
+    v_description = body["description"]
+    v_enddate = body["enddate"]
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE fee_t
+  SET
+    description = %s
+    ,enddate = %s
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+    v_description,
+    v_enddate,
+    feeId
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_fee: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+
 def get_tenancy_fee_mappings(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -757,6 +1021,8 @@ SELECT
             "params": (tenancy_fee_mappingId, )
         }
     )
+
+
 def get_account_entrys(user, token_info):
     return dbGetMany(user, token_info, {
             "statement": """
@@ -822,3 +1088,5 @@ SELECT
             "params": (account_entryId, )
         }
     )
+
+
diff --git a/api/methods.py.tmpl b/api/methods.py.tmpl
index 1a2c00e..07acb70 100644
--- a/api/methods.py.tmpl
+++ b/api/methods.py.tmpl
@@ -1,7 +1,8 @@
 $GENERATED_PYTHON_COMMENT
 
-from db import dbGetMany, dbGetOne, dbInsert
+from db import dbGetMany, dbGetOne, dbInsert, dbUpdate
 from loguru import logger
+import werkzeug
 
 #for $table in $tables
 def get_${table.name}s(user, token_info):
@@ -77,4 +78,42 @@ SELECT
             "params": (${table.name}Id, )
         }
     )
+
+#if (('immutable' not in $table) or (not $table.immutable))
+def update_${table.name}(user, token_info, ${table.name}Id=None, **args):
+  try:
+    body = args["body"]
+#for $column in $table.columns
+#if (('immutable' not in $column) or (not $column.immutable))
+    v_$column.name = body["$column.name"]
+#end if
+#end for
+    return dbUpdate(user, token_info, {
+      "statement": """
+UPDATE ${table.name}_t
+  SET
+#set $sep=""
+#for $column in $table.columns
+#if (('immutable' not in $column) or (not $column.immutable))
+    $sep$column.name = %s
+#end if
+#set $sep=","
+#end for   
+  WHERE id = %s
+  RETURNING *
+""",
+      "params": [
+#for $column in $table.columns
+#if (('immutable' not in $column) or (not $column.immutable))
+    v_${column.name},
+#end if
+#end for   
+    ${table.name}Id
+      ]      
+    })
+  except KeyError as e:
+    logger.warning("update_${table.name}: parameter missing: {}".format(e))
+    raise werkzeug.exceptions.UnprocessableEntity("parameter missing: {}".format(e))
+#end if
+
 #end for
diff --git a/api/openapi.yaml b/api/openapi.yaml
index 6c4718e..c14c732 100644
--- a/api/openapi.yaml
+++ b/api/openapi.yaml
@@ -56,6 +56,27 @@ paths:
                   $ref: '#/components/schemas/account'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "account" ]
+      summary: Update a account
+      operationId: methods.update_account
+      requestBody:
+        description: account
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/account'
+      responses:
+        '200':
+          description: account successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/account'
+      security:
+      - jwt: ['secret']
   /v1/accounts/{accountId}:
     get:
       tags: [ "account" ]
@@ -78,6 +99,33 @@ paths:
                   $ref: '#/components/schemas/account'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "account" ]
+      summary: Update a account
+      operationId: methods.update_account
+      parameters:
+        - name: accountId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: account
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/account'
+      responses:
+        '200':
+          description: account successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/account'
+      security:
+      - jwt: ['secret']
   /v1/tenants:
     get:
       tags: [ "tenant" ]
@@ -115,6 +163,27 @@ paths:
                   $ref: '#/components/schemas/tenant'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "tenant" ]
+      summary: Update a tenant
+      operationId: methods.update_tenant
+      requestBody:
+        description: tenant
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/tenant'
+      responses:
+        '200':
+          description: tenant successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/tenant'
+      security:
+      - jwt: ['secret']
   /v1/tenants/{tenantId}:
     get:
       tags: [ "tenant" ]
@@ -137,6 +206,33 @@ paths:
                   $ref: '#/components/schemas/tenant'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "tenant" ]
+      summary: Update a tenant
+      operationId: methods.update_tenant
+      parameters:
+        - name: tenantId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: tenant
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/tenant'
+      responses:
+        '200':
+          description: tenant successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/tenant'
+      security:
+      - jwt: ['secret']
   /v1/premises:
     get:
       tags: [ "premise" ]
@@ -174,6 +270,27 @@ paths:
                   $ref: '#/components/schemas/premise'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "premise" ]
+      summary: Update a premise
+      operationId: methods.update_premise
+      requestBody:
+        description: premise
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/premise'
+      responses:
+        '200':
+          description: premise successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/premise'
+      security:
+      - jwt: ['secret']
   /v1/premises/{premiseId}:
     get:
       tags: [ "premise" ]
@@ -196,6 +313,33 @@ paths:
                   $ref: '#/components/schemas/premise'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "premise" ]
+      summary: Update a premise
+      operationId: methods.update_premise
+      parameters:
+        - name: premiseId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: premise
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/premise'
+      responses:
+        '200':
+          description: premise successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/premise'
+      security:
+      - jwt: ['secret']
   /v1/flats:
     get:
       tags: [ "flat" ]
@@ -233,6 +377,27 @@ paths:
                   $ref: '#/components/schemas/flat'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "flat" ]
+      summary: Update a flat
+      operationId: methods.update_flat
+      requestBody:
+        description: flat
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/flat'
+      responses:
+        '200':
+          description: flat successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/flat'
+      security:
+      - jwt: ['secret']
   /v1/flats/{flatId}:
     get:
       tags: [ "flat" ]
@@ -255,6 +420,33 @@ paths:
                   $ref: '#/components/schemas/flat'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "flat" ]
+      summary: Update a flat
+      operationId: methods.update_flat
+      parameters:
+        - name: flatId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: flat
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/flat'
+      responses:
+        '200':
+          description: flat successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/flat'
+      security:
+      - jwt: ['secret']
   /v1/overhead_advances:
     get:
       tags: [ "overhead_advance" ]
@@ -292,6 +484,27 @@ paths:
                   $ref: '#/components/schemas/overhead_advance'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "overhead_advance" ]
+      summary: Update a overhead_advance
+      operationId: methods.update_overhead_advance
+      requestBody:
+        description: overhead_advance
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/overhead_advance'
+      responses:
+        '200':
+          description: overhead_advance successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/overhead_advance'
+      security:
+      - jwt: ['secret']
   /v1/overhead_advances/{overhead_advanceId}:
     get:
       tags: [ "overhead_advance" ]
@@ -314,6 +527,33 @@ paths:
                   $ref: '#/components/schemas/overhead_advance'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "overhead_advance" ]
+      summary: Update a overhead_advance
+      operationId: methods.update_overhead_advance
+      parameters:
+        - name: overhead_advanceId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: overhead_advance
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/overhead_advance'
+      responses:
+        '200':
+          description: overhead_advance successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/overhead_advance'
+      security:
+      - jwt: ['secret']
   /v1/overhead_advance_flat_mappings:
     get:
       tags: [ "overhead_advance_flat_mapping" ]
@@ -351,6 +591,27 @@ paths:
                   $ref: '#/components/schemas/overhead_advance_flat_mapping'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "overhead_advance_flat_mapping" ]
+      summary: Update a overhead_advance_flat_mapping
+      operationId: methods.update_overhead_advance_flat_mapping
+      requestBody:
+        description: overhead_advance_flat_mapping
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/overhead_advance_flat_mapping'
+      responses:
+        '200':
+          description: overhead_advance_flat_mapping successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/overhead_advance_flat_mapping'
+      security:
+      - jwt: ['secret']
   /v1/overhead_advance_flat_mappings/{overhead_advance_flat_mappingId}:
     get:
       tags: [ "overhead_advance_flat_mapping" ]
@@ -410,6 +671,27 @@ paths:
                   $ref: '#/components/schemas/parking'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "parking" ]
+      summary: Update a parking
+      operationId: methods.update_parking
+      requestBody:
+        description: parking
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/parking'
+      responses:
+        '200':
+          description: parking successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/parking'
+      security:
+      - jwt: ['secret']
   /v1/parkings/{parkingId}:
     get:
       tags: [ "parking" ]
@@ -432,6 +714,33 @@ paths:
                   $ref: '#/components/schemas/parking'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "parking" ]
+      summary: Update a parking
+      operationId: methods.update_parking
+      parameters:
+        - name: parkingId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: parking
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/parking'
+      responses:
+        '200':
+          description: parking successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/parking'
+      security:
+      - jwt: ['secret']
   /v1/commercial_premises:
     get:
       tags: [ "commercial_premise" ]
@@ -469,6 +778,27 @@ paths:
                   $ref: '#/components/schemas/commercial_premise'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "commercial_premise" ]
+      summary: Update a commercial_premise
+      operationId: methods.update_commercial_premise
+      requestBody:
+        description: commercial_premise
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/commercial_premise'
+      responses:
+        '200':
+          description: commercial_premise successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/commercial_premise'
+      security:
+      - jwt: ['secret']
   /v1/commercial_premises/{commercial_premiseId}:
     get:
       tags: [ "commercial_premise" ]
@@ -491,6 +821,33 @@ paths:
                   $ref: '#/components/schemas/commercial_premise'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "commercial_premise" ]
+      summary: Update a commercial_premise
+      operationId: methods.update_commercial_premise
+      parameters:
+        - name: commercial_premiseId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: commercial_premise
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/commercial_premise'
+      responses:
+        '200':
+          description: commercial_premise successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/commercial_premise'
+      security:
+      - jwt: ['secret']
   /v1/tenancys:
     get:
       tags: [ "tenancy" ]
@@ -528,6 +885,27 @@ paths:
                   $ref: '#/components/schemas/tenancy'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "tenancy" ]
+      summary: Update a tenancy
+      operationId: methods.update_tenancy
+      requestBody:
+        description: tenancy
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/tenancy'
+      responses:
+        '200':
+          description: tenancy successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/tenancy'
+      security:
+      - jwt: ['secret']
   /v1/tenancys/{tenancyId}:
     get:
       tags: [ "tenancy" ]
@@ -550,6 +928,33 @@ paths:
                   $ref: '#/components/schemas/tenancy'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "tenancy" ]
+      summary: Update a tenancy
+      operationId: methods.update_tenancy
+      parameters:
+        - name: tenancyId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: tenancy
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/tenancy'
+      responses:
+        '200':
+          description: tenancy successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/tenancy'
+      security:
+      - jwt: ['secret']
   /v1/fees:
     get:
       tags: [ "fee" ]
@@ -587,6 +992,27 @@ paths:
                   $ref: '#/components/schemas/fee'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "fee" ]
+      summary: Update a fee
+      operationId: methods.update_fee
+      requestBody:
+        description: fee
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/fee'
+      responses:
+        '200':
+          description: fee successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/fee'
+      security:
+      - jwt: ['secret']
   /v1/fees/{feeId}:
     get:
       tags: [ "fee" ]
@@ -609,6 +1035,33 @@ paths:
                   $ref: '#/components/schemas/fee'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "fee" ]
+      summary: Update a fee
+      operationId: methods.update_fee
+      parameters:
+        - name: feeId
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: fee
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/fee'
+      responses:
+        '200':
+          description: fee successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/fee'
+      security:
+      - jwt: ['secret']
   /v1/tenancy_fee_mappings:
     get:
       tags: [ "tenancy_fee_mapping" ]
@@ -646,6 +1099,27 @@ paths:
                   $ref: '#/components/schemas/tenancy_fee_mapping'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "tenancy_fee_mapping" ]
+      summary: Update a tenancy_fee_mapping
+      operationId: methods.update_tenancy_fee_mapping
+      requestBody:
+        description: tenancy_fee_mapping
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/tenancy_fee_mapping'
+      responses:
+        '200':
+          description: tenancy_fee_mapping successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/tenancy_fee_mapping'
+      security:
+      - jwt: ['secret']
   /v1/tenancy_fee_mappings/{tenancy_fee_mappingId}:
     get:
       tags: [ "tenancy_fee_mapping" ]
@@ -705,6 +1179,27 @@ paths:
                   $ref: '#/components/schemas/account_entry'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "account_entry" ]
+      summary: Update a account_entry
+      operationId: methods.update_account_entry
+      requestBody:
+        description: account_entry
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/account_entry'
+      responses:
+        '200':
+          description: account_entry successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/account_entry'
+      security:
+      - jwt: ['secret']
   /v1/account_entrys/{account_entryId}:
     get:
       tags: [ "account_entry" ]
diff --git a/api/openapi.yaml.tmpl b/api/openapi.yaml.tmpl
index 47e3c4b..be67921 100644
--- a/api/openapi.yaml.tmpl
+++ b/api/openapi.yaml.tmpl
@@ -52,6 +52,27 @@ paths:
                   \$ref: '#/components/schemas/$table.name'
       security:
       - jwt: ['secret']
+    put:
+      tags: [ "$table.name" ]
+      summary: Update a ${table.name}
+      operationId: methods.update_${table.name}
+      requestBody:
+        description: $table.name
+        content:
+          application/json:
+            schema:
+              \$ref: '#/components/schemas/$table.name'
+      responses:
+        '200':
+          description: ${table.name} successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  \$ref: '#/components/schemas/$table.name'
+      security:
+      - jwt: ['secret']
   /v1/${table.name}s/{${table.name}Id}:
     get:
       tags: [ "$table.name" ]
@@ -74,6 +95,35 @@ paths:
                   \$ref: '#/components/schemas/$table.name'
       security:
       - jwt: ['secret']
+#if (('immutable' not in $table) or (not $table.immutable))
+    put:
+      tags: [ "$table.name" ]
+      summary: Update a ${table.name}
+      operationId: methods.update_${table.name}
+      parameters:
+        - name: ${table.name}Id
+          in: path
+          required: true
+          schema:
+            type: integer
+      requestBody:
+        description: $table.name
+        content:
+          application/json:
+            schema:
+              \$ref: '#/components/schemas/$table.name'
+      responses:
+        '200':
+          description: ${table.name} successfully inserted
+          content:
+            'application/json':
+              schema:
+                type: array
+                items:
+                  \$ref: '#/components/schemas/$table.name'
+      security:
+      - jwt: ['secret']
+#end if
 #end for
 
 components:
diff --git a/schema.json b/schema.json
index 7b9eb76..e76fc6d 100644
--- a/schema.json
+++ b/schema.json
@@ -20,7 +20,7 @@
                 { "name": "phone1", "sqltype": "varchar(64)" },
                 { "name": "phone2", "sqltype": "varchar(64)" },
                 { "name": "iban", "sqltype": "varchar(64)" },
-                { "name": "account", "sqltype": "integer", "notnull": true, "foreignkey": true }
+                { "name": "account", "sqltype": "integer", "notnull": true, "foreignkey": true, "immutable": true }
             ]            
         },
         {
@@ -45,13 +45,14 @@
             "name": "overhead_advance",
             "columns": [
                 { "name": "description", "sqltype": "varchar(128)", "selector": 0 },
-                { "name": "amount", "sqltype": "numeric(10,4)", "notnull": true },
-                { "name": "startdate", "sqltype": "date", "selector": 1 },
+                { "name": "amount", "sqltype": "numeric(10,4)", "notnull": true, "immutable": true },
+                { "name": "startdate", "sqltype": "date", "selector": 1, "immutable": true },
                 { "name": "enddate", "sqltype": "date" }
             ]
         },
         { 
             "name": "overhead_advance_flat_mapping",
+            "immutable": true,
             "columns": [
                 { "name": "overhead_advance", "sqltype": "integer", "notnull": true, "foreignkey": true, "selector": 0 },
                 { "name": "flat", "sqltype": "integer", "notnull": true, "foreignkey": true, "selector": 1 }
@@ -75,11 +76,11 @@
             "name": "tenancy",
             "columns": [
                 { "name": "description", "sqltype": "varchar(128)", "selector": 0 },
-                { "name": "tenant", "sqltype": "integer", "notnull": true, "foreignkey": true },
-                { "name": "flat", "sqltype": "integer", "notnull": false, "foreignkey": true },
-                { "name": "parking", "sqltype": "integer", "notnull": false, "foreignkey": true },
-                { "name": "commercial_premise", "sqltype": "integer", "notnull": false, "foreignkey": true },
-                { "name": "startdate", "sqltype": "date", "notnull": true, "selector": 1 },
+                { "name": "tenant", "sqltype": "integer", "notnull": true, "foreignkey": true, "immutable": true },
+                { "name": "flat", "sqltype": "integer", "notnull": false, "foreignkey": true, "immutable": true },
+                { "name": "parking", "sqltype": "integer", "notnull": false, "foreignkey": true, "immutable": true },
+                { "name": "commercial_premise", "sqltype": "integer", "notnull": false, "foreignkey": true, "immutable": true },
+                { "name": "startdate", "sqltype": "date", "notnull": true, "selector": 1, "immutable": true },
                 { "name": "enddate", "sqltype": "date", "notnull": false }
             ],
             "tableConstraints": [ 
@@ -90,9 +91,9 @@
             "name": "fee",
             "columns": [
                 { "name": "description", "sqltype": "varchar(128)", "selector": 0 },
-                { "name": "amount", "sqltype": "numeric(10,2)", "notnull": true },
-                { "name": "fee_type", "sqltype": "varchar(10)", "notnull": true },
-                { "name": "startdate", "sqltype": "date", "selector": 1 },
+                { "name": "amount", "sqltype": "numeric(10,2)", "notnull": true, "immutable": true },
+                { "name": "fee_type", "sqltype": "varchar(10)", "notnull": true, "immutable": true },
+                { "name": "startdate", "sqltype": "date", "selector": 1, "immutable": true },
                 { "name": "enddate", "sqltype": "date" }
             ],
             "tableConstraints": [
@@ -101,6 +102,7 @@
         },
         { 
             "name": "tenancy_fee_mapping",
+            "immutable": true,
             "columns": [
                 { "name": "tenancy", "sqltype": "integer", "notnull": true, "foreignkey": true },
                 { "name": "fee", "sqltype": "integer", "notnull": true, "foreignkey": true }
@@ -108,6 +110,7 @@
         },
         {
             "name": "account_entry",
+            "immutable": true,
             "columns": [
                 { "name": "description", "sqltype": "varchar(128)", "notnull": true },
                 { "name": "account", "sqltype": "integer", "notnull": true, "foreignkey": true },
diff --git a/ui/hv2-ui/src/app/config.ts b/ui/hv2-ui/src/app/config.ts
index 7144afb..3b143eb 100644
--- a/ui/hv2-ui/src/app/config.ts
+++ b/ui/hv2-ui/src/app/config.ts
@@ -2,4 +2,4 @@
 // export const serviceBaseUrl = "http://172.16.10.38:5000";
 export const serviceBaseUrl = "http://localhost:8080"
 export const authserviceBaseUrl = "https://authservice.hottis.de"
-
+export const applicationId = "hv2"
diff --git a/ui/hv2-ui/src/app/data-object-service.ts b/ui/hv2-ui/src/app/data-object-service.ts
index e98a5df..860aa26 100644
--- a/ui/hv2-ui/src/app/data-object-service.ts
+++ b/ui/hv2-ui/src/app/data-object-service.ts
@@ -7,8 +7,7 @@
 
 
 import { Injectable } from '@angular/core';
-import { Observable, of } from 'rxjs';
-import { HttpClient, HttpHeaders } from '@angular/common/http';
+import { HttpClient } from '@angular/common/http';
 
 import { MessageService } from './message.service';
 import { serviceBaseUrl } from './config';
@@ -54,6 +53,13 @@ export class AccountService {
     return this.http.post<Account>(`${serviceBaseUrl}/v1/accounts`, item).toPromise()
   }
 
+  async putAccount(item: Account): Promise<Account> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`AccountService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<Account>(`${serviceBaseUrl}/v1/accounts/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -76,6 +82,13 @@ export class TenantService {
     return this.http.post<Tenant>(`${serviceBaseUrl}/v1/tenants`, item).toPromise()
   }
 
+  async putTenant(item: Tenant): Promise<Tenant> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`TenantService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<Tenant>(`${serviceBaseUrl}/v1/tenants/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -98,6 +111,13 @@ export class PremiseService {
     return this.http.post<Premise>(`${serviceBaseUrl}/v1/premises`, item).toPromise()
   }
 
+  async putPremise(item: Premise): Promise<Premise> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`PremiseService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<Premise>(`${serviceBaseUrl}/v1/premises/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -120,6 +140,13 @@ export class FlatService {
     return this.http.post<Flat>(`${serviceBaseUrl}/v1/flats`, item).toPromise()
   }
 
+  async putFlat(item: Flat): Promise<Flat> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`FlatService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<Flat>(`${serviceBaseUrl}/v1/flats/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -142,6 +169,13 @@ export class OverheadAdvanceService {
     return this.http.post<OverheadAdvance>(`${serviceBaseUrl}/v1/overhead_advances`, item).toPromise()
   }
 
+  async putOverheadAdvance(item: OverheadAdvance): Promise<OverheadAdvance> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`OverheadAdvanceService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<OverheadAdvance>(`${serviceBaseUrl}/v1/overhead_advances/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -164,6 +198,7 @@ export class OverheadAdvanceFlatMappingService {
     return this.http.post<OverheadAdvanceFlatMapping>(`${serviceBaseUrl}/v1/overhead_advance_flat_mappings`, item).toPromise()
   }
 
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -186,6 +221,13 @@ export class ParkingService {
     return this.http.post<Parking>(`${serviceBaseUrl}/v1/parkings`, item).toPromise()
   }
 
+  async putParking(item: Parking): Promise<Parking> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`ParkingService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<Parking>(`${serviceBaseUrl}/v1/parkings/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -208,6 +250,13 @@ export class CommercialPremiseService {
     return this.http.post<CommercialPremise>(`${serviceBaseUrl}/v1/commercial_premises`, item).toPromise()
   }
 
+  async putCommercialPremise(item: CommercialPremise): Promise<CommercialPremise> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`CommercialPremiseService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<CommercialPremise>(`${serviceBaseUrl}/v1/commercial_premises/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -230,6 +279,13 @@ export class TenancyService {
     return this.http.post<Tenancy>(`${serviceBaseUrl}/v1/tenancys`, item).toPromise()
   }
 
+  async putTenancy(item: Tenancy): Promise<Tenancy> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`TenancyService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<Tenancy>(`${serviceBaseUrl}/v1/tenancys/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -252,6 +308,13 @@ export class FeeService {
     return this.http.post<Fee>(`${serviceBaseUrl}/v1/fees`, item).toPromise()
   }
 
+  async putFee(item: Fee): Promise<Fee> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`FeeService: put data for ${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<Fee>(`${serviceBaseUrl}/v1/fees/${id}`, item).toPromise()
+  }
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -274,6 +337,7 @@ export class TenancyFeeMappingService {
     return this.http.post<TenancyFeeMapping>(`${serviceBaseUrl}/v1/tenancy_fee_mappings`, item).toPromise()
   }
 
+
 }
 
 @Injectable({ providedIn: 'root' })
@@ -296,6 +360,7 @@ export class AccountEntryService {
     return this.http.post<AccountEntry>(`${serviceBaseUrl}/v1/account_entrys`, item).toPromise()
   }
 
+
 }
 
 
diff --git a/ui/hv2-ui/src/app/data-object-service.ts.tmpl b/ui/hv2-ui/src/app/data-object-service.ts.tmpl
index 19591a5..4db6e92 100644
--- a/ui/hv2-ui/src/app/data-object-service.ts.tmpl
+++ b/ui/hv2-ui/src/app/data-object-service.ts.tmpl
@@ -2,8 +2,7 @@ $GENERATED_TS_COMMENT
 
 
 import { Injectable } from '@angular/core';
-import { Observable, of } from 'rxjs';
-import { HttpClient, HttpHeaders } from '@angular/common/http';
+import { HttpClient } from '@angular/common/http';
 
 import { MessageService } from './message.service';
 import { serviceBaseUrl } from './config';
@@ -42,6 +41,15 @@ export class ${JsNameConverter($table.name)}Service {
     return this.http.post<${JsNameConverter($table.name)}>(`\${serviceBaseUrl}/v1/${table.name}s`, item).toPromise()
   }
 
+#if (('immutable' not in $table) or (not $table.immutable))
+  async put${JsNameConverter($table.name)}(item: ${JsNameConverter($table.name)}): Promise<${JsNameConverter($table.name)}> {
+    let itemStr: string = JSON.stringify(item, undefined, 4)
+    this.messageService.add(`${JsNameConverter($table.name)}Service: put data for \${itemStr}`)
+    let id: number = item["id"]
+    return this.http.put<${JsNameConverter($table.name)}>(`\${serviceBaseUrl}/v1/${table.name}s/\${id}`, item).toPromise()
+  }
+#end if
+
 }
 
 #end for          
diff --git a/ui/hv2-ui/src/app/token.service.ts b/ui/hv2-ui/src/app/token.service.ts
index 5a02acc..b63089a 100644
--- a/ui/hv2-ui/src/app/token.service.ts
+++ b/ui/hv2-ui/src/app/token.service.ts
@@ -5,7 +5,7 @@ import { UserCreds } from './userCreds'
 import jwt_decode  from 'jwt-decode'
 import { Observable, interval, Subject, Subscription } from 'rxjs'
 import { map, takeWhile } from 'rxjs/operators'
-import { authserviceBaseUrl } from './config'
+import { authserviceBaseUrl, applicationId } from './config'
 
 
 interface TokenTuple {
@@ -66,7 +66,7 @@ export class TokenService {
   async login(login: string, password: string) : Promise<void> {
     this.messageService.add(`TokenService: trying to login and obtain token`)
     const userCreds : UserCreds = {
-      "application": "hv2",
+      "application": applicationId,
       "login": login,
       "password": password
     }