Solution : https://service.sap.com/sap/support/notes/125131 (SAP Service marketplace login required)
Key words :
transaction wedi -> development -> idoc segments, transaction se37 -> function module masteridoc_create_cremas, transaction se37 -> function idoc_input_creditor, enhance message type cremas, user exit customer-function '001', user-defined segments, user exit - directly, sap retail customer, ale outbound processing, ale inbound processing
Related Notes :
| 486912 | ALE distribution field 'Tax office' for constr.ded. tax |