Solution : https://service.sap.com/sap/support/notes/391011 (SAP Service marketplace login required)
Key words :
notice thatthe system, eban eban-banfn, incorrect purchase requisitions, implement note 315202 tocorrect, temporary document number, purchase requisition number, function module 'get_number_next', function module, purchase requisition, document number
Related Notes :
429910 | Correction report for PReqs with 'temporary' document number |
355560 | ME51N doc number '# 1' for number range object error |
355383 | ME51 ME51N PReq saved with docmt number '#1' or ' ' |