Solution : https://service.sap.com/sap/support/notes/574486 (SAP Service marketplace login required)
Key words :
system displays message m7064, attached correction instructions, subcontracting inbound delivery, m7064 reason, return delivery, inbound deliveries, subcontracting items, movement type 122, transaction mb0a, ekes-dabmg
Related Notes :
| 603387 | Composite SAP Note for problems with return deliveries |
| 574766 | Error BORGR622 for return delivery to inbound delivery |