Solution : https://service.sap.com/sap/support/notes/698058 (SAP Service marketplace login required)
Key words :
delivery-relevant rba main items, partially delivered sales order, incorrect item category, rules-based atp, terms vbap-pstyv, vbap-uepos reason, attached correction instructions, order quantity, program correction, system determines
Related Notes :
| 738977 | Deliv.date/order quant. unchangeable after partial delivery |
| 451108 | Rules-based ATP in APO: Customizing SD item categories |