Solution : https://service.sap.com/sap/support/notes/448767 (SAP Service marketplace login required)
Key words :
set internal document number assignment, set external document number assignment, set external number assignment, internal document number assignment, external document number assignment, standard document type defined, external number assignment, standard document type &1, number range interval, attached correction instructions
Related Notes :
207070 | No currency change after billing down payment dates |