Solution : https://service.sap.com/sap/support/notes/160208 (SAP Service marketplace login required)
Key words :
delivery-related billing documents, additional key words fv45pf0v, prerequisites program error notes 79999, message v1i857 'item &1, item level, pricing date, header level, subsequent order, subsequent document, vbap-waerk_setzen
Related Notes :
| 334223 | Pricing date can be changed after billing |
| 104821 | Revaluation of items already billed |