Solution : https://service.sap.com/sap/support/notes/304889 (SAP Service marketplace login required)
Key words :
document type requires external number assignment, additional key words enjoy, internal number assignment, document number counter, change parked document, attached advance correction, document existing gaps, document type, document number, external auditor
Related Notes :
175047 | Causes for FI document number gaps (RF_BELEG) |