SAP Message 1W077 - Service &1 is already assigned to object &2 (service type: &3)

Diagnosis
Services of type Transaction or Search Help bothparametrize initial screens of transactions. It therefore does not makesense to assign a transaction both directly (as type Transaction) andindirectly (as Search Help) to the same object at the same time.

Procedure
Check which assignment makes sense and choose one of the two types.