Solution : https://service.sap.com/sap/support/notes/867822 (SAP Service marketplace login required)
Key words :
attached correction instructions, local atp check, item category determination, item category, availability check, check availability, preceding item, crm system, error v1 320 ', table t184 &1 &2 &3 &4
Related Notes :
| 871486 | Local ATP: Error message if material is not ATP-relevant |