Function module & is not RFC-compatible

What causes this issue?

Function module &v1&, which should assume reponsibility for further
IDoc processing, has been stored for port &v2&.
Such function modules must support Remote Function Call. However,
function module &v1& does not have this attribute. As a result, this
IDoc could not be processed further.

System Response

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

How to fix this error?

Please change the attributes of function module &v1& or enter an
RFC-compatible function module in the port definition for port &v2&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.