How To Fix SPXN127 - Current Scope &1 does not match Scope &2 of its referenced object

SAP Error Message - Details

• Message type: E = Error

• Message class: SPXN - Proxy Generation

• Message number: 127

• Message text: Current Scope &1 does not match Scope &2 of its referenced object

What causes this issue?

You must assign either only modeled message types or only message types
based on an external WSDL description.
Otherwise it may be impossible to generate a unique schema description
of the contract or contract implementation.

System Response

How to fix this error?

Procedure for System Administrators

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.