How To Fix SPXN087 - Contract operations &1 and &2 have the same request but diff. fault(s)

SAP Error Message - Details

• Message type: E = Error

• Message class: SPXN - Proxy Generation

• Message number: 087

• Message text: Contract operations &1 and &2 have the same request but diff. fault(s)

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

Diagnosis
Contract operations of an actor that are using the the same message
request type have to use the same message response type as well as the
same message fault type(s). In the contract implementation these
operations are merged to one single operation.

Error message extract from SAP system. Copyright SAP SE.