Solution : https://service.sap.com/sap/support/notes/129510 (SAP Service marketplace login required)
Key words :
subsequent processing additional key words user exits, pos inbound processing consumes, inactive function exits, inactive function exit, function exits, function exit, active inactive, large amount, application servers, database accesses
Related Notes :
332471 | Deactivating unrequired function exits |
213546 | HPR collective note: POS inbound |