SAP Gateway has been deactivated

What causes this issue?

SAP Gateway has been deactivated - or has never been activated.

System Response

SAP Gateway cannot run. Instead, an error message is sent to anyone who
calls the services.

How to fix this error?

Activate SAP Gateway.

Procedure for System Administrators

Maintain the relevant settings in the IMG activity
<DS:SIMG./IWFND/IMG_IWF_ACTIVATE>Activate / Deactivate SAP Gateway</>

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

Error message extract from SAP system. Copyright SAP SE.