When you import an integration using an older version (for example, version 15.4.5) of an IAR file that includes an outbound SOAP adapter configured with an agent group for accessing an on-premises application, you must perform the following steps to successfully activate the integration.
Once imported, edit both the inbound and outbound endpoints of the integration in the Adapter Configuration Wizard (you do not need to change any content, just click Next).
Remap the request and response messages.
Save, and then activate the integration. Without this workaround, the integration fails to successfully activate.