SAP Message WA634 - Type linkage between & & and &: Insertion not possible

Diagnosis
The specified type linkage between object type and event and thespecified receiver type cannot be entered.

System Response
The action was terminated. The entry was not made.

Procedure
Check the contents of the type linkage table using the transactionMaintain type linkage table. If necessary, enterthe missing type linkage.

135803Appropriation requests approval workflow: WA634
36426Problems activating event type linkage