diff --git a/src/main/asciidoc/architectureDocumentation/elogbook_architectureDocumentation.adoc b/src/main/asciidoc/architectureDocumentation/elogbook_architectureDocumentation.adoc
index 2c3396b..6f186a3 100644
--- a/src/main/asciidoc/architectureDocumentation/elogbook_architectureDocumentation.adoc
+++ b/src/main/asciidoc/architectureDocumentation/elogbook_architectureDocumentation.adoc
@@ -847,6 +847,7 @@
 ----
 {
   "portalBaseURL" : "http://{hostname}:{port}/portal/rest/beservice",
+  "contactBaseDataApiUrl" : "http://localhost:9155",
   "fileRowToRead": "9",
   "importFilesFolderPath": "/home/btbservice/importFiles",
   "activePersistencyUnit": "betriebstagebuch",
@@ -865,6 +866,7 @@
 ----
 * *portalBaseURL* - The portal base url should point the the address where the portal backend (the *Auth&Auth*-Server)
                     can be accessed. This is important for the authorization of the backend services.
+* *contactBaseDataApiUrl* - Base url of the *Contact Base Data*-Module.
 * *fileRowToRead* - Defines the line number inside the import-file of the relevant text line.
 * *importFilesFolderPath* - Defines the exchange directory for the import functionality
 * *activePersistencyUnit* - Defines the active part of the file persistenc.xml. Choose *"betriebstagebuchORA"* for the