Solution : https://service.sap.com/sap/support/notes/355560 (SAP Service marketplace login required)
Key words :
additional key words me51n, number range object 'preq', values tdobject = 'ebanh', incorrect document number, correct purchase requisition, enjoy preq, object mm_eban, document number, document number '# 1', provisional number
Related Notes :
| 429910 | Correction report for PReqs with 'temporary' document number |
| 391011 | Empty or incorrect document number when saving PReq |
| 355383 | ME51 ME51N PReq saved with docmt number '#1' or ' ' |