Solution : https://service.sap.com/sap/support/notes/645606 (SAP Service marketplace login required)
Key words :
message class /sapapo/mc01, relevant support package, 404 reference location dependents, copied406 reference product, class assignment, classes405 reference, material variant, product variant, configurable products, object assignment
Related Notes :
| 695572 | CIF: Invalid reference on a variant in APO II |
| 638548 | CDP: Class assignment incorrect with transfer to APO system |
| 433097 | @3Z@ SAP composite note integration CDP config. |