Own business system should be defined only once

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Select in the Customizing of Extended Warehouse Management
<PF>Interfaces -> ERP Integration -> General Settings ->
<DS:SIMG./SCWM/TOWNBS>Define own Business-System.</></>

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.