diff --git a/src/ENV-python b/src/ENV-python
index 3455cee..74140fd 100644
--- a/src/ENV-python
+++ b/src/ENV-python
@@ -1,2 +1,5 @@
 export PYTHONPATH=./locallibs/defectdojo-client:./locallibs/dependencytrack-client
 
+
+
+
diff --git a/src/converter.py b/src/converter.py
index f20146c..9e5eba4 100644
--- a/src/converter.py
+++ b/src/converter.py
@@ -9,6 +9,7 @@ from cyclonedx.model.bom import Bom
 from cyclonedx.model.component import Component, ComponentType
 from cyclonedx.model.contact import OrganizationalEntity
 from cyclonedx.model import XsUri
+from cyclonedx.model import ExternalReference
 from cyclonedx.output.json import JsonV1Dot5
 
 class MyLocalConverterException(Exception): pass
@@ -54,7 +55,9 @@ def minimalSbomFormatConverter(minimalSbom, classifier):
     minimalSbomObject = yaml.safe_load(minimalSbom)
     logger.debug(f"{minimalSbomObject=}")
 
-    bom = Bom()
+    bom = Bom(
+        version=minimalSbomObject['sbomVersion']
+    )
     bom.metadata.tools.components.add(cdx_lib_component())
     bom.metadata.tools.components.add(Component(
         name='sbom-dt-dd',
diff --git a/src/prepare-local-env.sh b/src/prepare-local-env.sh
index 648fe92..8aef2a4 100755
--- a/src/prepare-local-env.sh
+++ b/src/prepare-local-env.sh
@@ -1,10 +1,11 @@
 #!/bin/bash
 
+set -e
+
+. ./ENV
+
 LOCALLBIS=./locallibs
-DTRACK_API_URL=https://dtrack-api-rd.krohne.com
-DEFECTDOJO_API_URL=https://defectdojo-rd.krohne.com
 OPENAPI_GENERATOR=openapitools/openapi-generator-cli:v7.12.0
-UID=$(id -u)
 
 mkdir $LOCALLBIS && cd $LOCALLBIS
 
@@ -16,8 +17,8 @@ docker run -v $PWD:/work -u $UID $OPENAPI_GENERATOR \
   -g python \
   -o /work/dependencytrack-openapi-custom-template
 
-sed -i 's/import re/import regex as re/' dependencytrack-openapi-custom-template/model_anyof.mustache
-sed -i 's/import re/import regex as re/' dependencytrack-openapi-custom-template/model_generic.mustache
+sed -i -e 's/import re/import regex as re/' dependencytrack-openapi-custom-template/model_anyof.mustache
+sed -i -e 's/import re/import regex as re/' dependencytrack-openapi-custom-template/model_generic.mustache
 
 docker run -v $PWD:/work -u $UID $OPENAPI_GENERATOR \
   generate \
@@ -28,7 +29,7 @@ docker run -v $PWD:/work -u $UID $OPENAPI_GENERATOR \
   -t /work/dependencytrack-openapi-custom-template
 
 # --- Defectdojo Client Library ----------------------------------------------------------
-curl ${DEFECTDOJO_API_URL}/api/v2/oa3/schema/?format=json >defectdojo-openapi.json
+curl ${DEFECTDOJO_URL}/api/v2/oa3/schema/?format=json >defectdojo-openapi.json
 
 docker run -v $PWD:/work -u $UID $OPENAPI_GENERATOR \
   generate \
diff --git a/src/sbom-dt-dd.py b/src/sbom-dt-dd.py
index beaf36b..83cbab1 100644
--- a/src/sbom-dt-dd.py
+++ b/src/sbom-dt-dd.py
@@ -102,6 +102,11 @@ parser.add_argument('--overwritemetadata', '-O',
 parser.add_argument('--target', '-T',
                     help='Target to scan, either path name for sources or docker image tag',
                     required=False)
+parser.add_argument('--reimport', '-R',
+                    help='Import the SBOM for an existing project/product once again',
+                    required=False,
+                    action='store_true',
+                    default=False)
 parser.add_argument('--verbose', '-V',
                     help='A lot of debug output',
                     required=False,
@@ -113,6 +118,7 @@ projectVersion = args.version
 projectDescription = args.description
 productType = args.type
 projectClassifier = args.classifier
+reImport = args.reimport
 
 uploadSbomFlag = args.uploadsbom
 if uploadSbomFlag:
@@ -158,44 +164,46 @@ else:
 
 
 # ------- create product and engagement in DefectDojo -------
-defectdojo_configuration = defectdojo_api.Configuration(
-    host = DEFECTDOJO_URL
-)
-defectdojo_configuration.api_key['tokenAuth'] = DEFECTDOJO_TOKEN
-defectdojo_configuration.api_key_prefix['tokenAuth'] = 'Token'
+if not reImport:
+    # in case of a reimport no modification on DefectDojo are required
+    defectdojo_configuration = defectdojo_api.Configuration(
+        host = DEFECTDOJO_URL
+    )
+    defectdojo_configuration.api_key['tokenAuth'] = DEFECTDOJO_TOKEN
+    defectdojo_configuration.api_key_prefix['tokenAuth'] = 'Token'
 
-with defectdojo_api.ApiClient(defectdojo_configuration) as defectdojo_api_client:
-    print("Create product in DefectDojo")
-    productName = f"{projectName}:{projectVersion}"
-    product_response = \
-        executeApiCall(
-           defectdojo_api_client, 
-           defectdojo_api.ProductsApi, 
-           defectdojo_api.ProductsApi.products_create, 
-           defectdojo_api.ProductRequest,
-           { 'name': productName, 'description': projectDescription, 'prod_type': productType },
-           []
-        )
+    with defectdojo_api.ApiClient(defectdojo_configuration) as defectdojo_api_client:
+        print("Create product in DefectDojo")
+        productName = f"{projectName}:{projectVersion}"
+        product_response = \
+            executeApiCall(
+            defectdojo_api_client, 
+            defectdojo_api.ProductsApi, 
+            defectdojo_api.ProductsApi.products_create, 
+            defectdojo_api.ProductRequest,
+            { 'name': productName, 'description': projectDescription, 'prod_type': productType },
+            []
+            )
 
-    product_id = product_response.id
-    print(f"{product_id=}")
+        product_id = product_response.id
+        print(f"{product_id=}")
 
-    print("Create engagement in DefectDojo")
-    start_time = datetime.date.today()
-    end_time = start_time + relativedelta(years=10)
-    engagementName = f"{productName} DTrack Link"
-    engagement_response = \
-        executeApiCall(
-           defectdojo_api_client, 
-           defectdojo_api.EngagementsApi, 
-           defectdojo_api.EngagementsApi.engagements_create, 
-           defectdojo_api.EngagementRequest,
-           { 'name': engagementName, 'target_start': start_time, 'target_end': end_time, 'status': 'In Progress', 'product': product_id },
-           []
-        )
-    
-    engagement_id = engagement_response.id
-    print(f"{engagement_id=}")
+        print("Create engagement in DefectDojo")
+        start_time = datetime.date.today()
+        end_time = start_time + relativedelta(years=10)
+        engagementName = f"{productName} DTrack Link"
+        engagement_response = \
+            executeApiCall(
+            defectdojo_api_client, 
+            defectdojo_api.EngagementsApi, 
+            defectdojo_api.EngagementsApi.engagements_create, 
+            defectdojo_api.EngagementRequest,
+            { 'name': engagementName, 'target_start': start_time, 'target_end': end_time, 'status': 'In Progress', 'product': product_id },
+            []
+            )
+        
+        engagement_id = engagement_response.id
+        print(f"{engagement_id=}")
 
 
 # ------- create project in DependencyTrack, connect project to engagement in DefectDojo, upload SBOM --------
@@ -206,36 +214,38 @@ dependencytrack_configuration.debug = False
 dependencytrack_configuration.api_key['ApiKeyAuth'] = DTRACK_TOKEN
 
 with dependencytrack_api.ApiClient(dependencytrack_configuration) as dependencytrack_api_client:
-    project_response = \
-        executeApiCall(
-           dependencytrack_api_client,
-           dependencytrack_api.ProjectApi, 
-           dependencytrack_api.ProjectApi.create_project,
-           dependencytrack_api.Project,
-           { 'name': projectName, 'version': projectVersion, 'classifier': projectClassifier, 'uuid': "", 'last_bom_import': 0 },
-           []
-        )
-
-    project_uuid = project_response.uuid
-    print(f"{project_uuid=}")
-
-    properties = [
-        { 'group_name': "integrations", 'property_name': "defectdojo.engagementId", 
-          'property_value': str(engagement_id), 'property_type': "STRING" },
-        { 'group_name': "integrations", 'property_name': "defectdojo.doNotReactivate", 
-          'property_value': "true", 'property_type': "BOOLEAN" },
-        { 'group_name': "integrations", 'property_name': "defectdojo.reimport", 
-          'property_value': "true", 'property_type': "BOOLEAN" }
-    ]
-    for property in properties:
-        executeApiCall(
+    if not reImport:
+        # in case of a reimport it is not necessary to create the project
+        project_response = \
+            executeApiCall(
             dependencytrack_api_client,
-            dependencytrack_api.ProjectPropertyApi,
-            dependencytrack_api.ProjectPropertyApi.create_property1,
-            dependencytrack_api.ProjectProperty,
-            property,
-            [ project_uuid ]
-        )
+            dependencytrack_api.ProjectApi, 
+            dependencytrack_api.ProjectApi.create_project,
+            dependencytrack_api.Project,
+            { 'name': projectName, 'version': projectVersion, 'classifier': projectClassifier, 'uuid': "", 'last_bom_import': 0 },
+            []
+            )
+
+        project_uuid = project_response.uuid
+        print(f"{project_uuid=}")
+
+        properties = [
+            { 'group_name': "integrations", 'property_name': "defectdojo.engagementId", 
+            'property_value': str(engagement_id), 'property_type': "STRING" },
+            { 'group_name': "integrations", 'property_name': "defectdojo.doNotReactivate", 
+            'property_value': "true", 'property_type': "BOOLEAN" },
+            { 'group_name': "integrations", 'property_name': "defectdojo.reimport", 
+            'property_value': "true", 'property_type': "BOOLEAN" }
+        ]
+        for property in properties:
+            executeApiCall(
+                dependencytrack_api_client,
+                dependencytrack_api.ProjectPropertyApi,
+                dependencytrack_api.ProjectPropertyApi.create_property1,
+                dependencytrack_api.ProjectProperty,
+                property,
+                [ project_uuid ]
+            )
 
     bom_response = \
         executeApiCall(