SAP Knowledge Base Article - Public

3413327 - After Changing Hostname of Communication System, Outbound Messages still Sent to Previous Hostname


Outbound message still go to old hostname URL of the communication system, although hostname URL changed for the communication system.


Cloud for Customer

Reproducing the Issue

1. Create communication system with hostname URL;

2. Create communication arrangements accordingly;

3. Change the hostname of the communication system into;

4. Check the actual outbound message, still go to old hostname URL


It is not recommended to change hostname in the communication system when communication arrangements were already there. 


Delete and recreate those communication arrangements.



communication system, hostname , KBA , LOD-CRM-INT-ERP , Integration of C4C with ERP , Problem


SAP Cloud for Customer core applications 2311