diff --git a/migration.txt b/migration.txt
index a2d2701..84075bc 100644
--- a/migration.txt
+++ b/migration.txt
@@ -2,43 +2,47 @@
 
 ## First step:
 
-  - remove all existing services in namespace broker
-  - create externalName emqx01-anonymous-cluster-internal.broker.svc.cluster.local in namespace broker
-  - check whether services in namespace mosquitto get addresses
-  - check whether applications connect via externalName to mosquitto
+  - [x] remove all existing services in namespace broker
+  - [x] create externalName emqx01-anonymous-cluster-internal.broker.svc.cluster.local in namespace broker
+  - [x] check whether services in namespace mosquitto get addresses
+  - [x] check whether applications connect via externalName to mosquitto
+  - [x] delete broker namespace and re-deploy externalName including namespace
+  - [x] delete helm chart emqx
 
 ## Second step:
 
 Change applications
 
 ### homea/digitaltwin
-  - configMap in install-yml.tmpl anpassen und nur configMap neu applyen
+  - [ ] configMap in install-yml.tmpl anpassen und nur configMap neu applyen
 
 ### homea/ma
-  - config.json in Repo anpassen und neu deployen
+  - [ ] config.json in Repo anpassen und neu deployen
 
 ### homea/snmp-mqtt
-  - config.json in Repo anpassen und pushconfig.sh ausführen
+  - [ ] config.json in Repo anpassen und pushconfig.sh ausführen
 
 ### homea/tsm-mqtt
-  - config.json in Repo anpassen und pushconfig.sh ausführen
+  - [ ] config.json in Repo anpassen und pushconfig.sh ausführen
 
 ### homea/zigbee2mqtt
-  - configmap.yml in Repo anpassen und neu applyen
+  - [ ] configmap.yml in Repo anpassen und neu applyen
 
 ### homea2/abstraction
-  - configmap.yml in Repo anpassen und neu applyen
+  - [ ] configmap.yml in Repo anpassen und neu applyen
 
 ### homea2/api
-  - wie abstraction
+  - [ ] wie abstraction
 
 ### homea2/pulsegen
-  - wie abstraction
+  - [ ] wie abstraction
 
 ### homea-ctrl-1/pv-controller
-  - config.yaml in Repo anpassen und neu applyen
+  - [ ] config.yaml in Repo anpassen und neu applyen
 
 ### udi/default-udi
-  - deployment/instances/udi/default/config.json anpassen und conigMap default-udi-conf im Namespace udi neu applyen (siehe deploy.sh)
+  - [ ] deployment/instances/udi/default/config.json anpassen und conigMap default-udi-conf im Namespace udi neu applyen (siehe deploy.sh)
 
+### externalName
+  - [ ] delete namespace broker including externalName