How To Fix SOBL_MESSAGE001 - Invalid relationship &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SOBL_MESSAGE - Object Relationship Service Messages

• Message number: 001

• Message text: Invalid relationship &1

What causes this issue?

An attempt was made to create a relationship between two business
objects, for which no relationship model was maintained.

System Response

No relationship was created.

How to fix this error?

Check the relationship model (transaction SOBL_MODEL). The object types
to be related must be assigned to the roles for which the relationship
was defined.

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.