Solution : https://service.sap.com/sap/support/notes/460444 (SAP Service marketplace login required)
Summary :
When the rules-based ATP check (sourcing) is used, SAP fails to set the necessary flag for active article selection in sourcing subitems (field VBAP-PROSA remains initial). This issue, caused by a program error, can disrupt further subitem processing, such as during structure re-explosion or when dealing with field immutability. Users must apply the provided correction to resolve this. Related notes are 202554, 327848, and 333032, pending their validity.
Key words :
field vbap-prosa remains initial, rules-based atp check, active article selection, unchangeable item fields, attached advance correction, sourcing subitems, program error, solution implement, prerequisites depending, prerequisites
Related Notes :
| 460527 | Update with product selection and rules-based ATP |
| 333032 | No product selection for APO materials |
| 327848 | Reason for substitution not displayed in sales order |
| 202554 | Processing of sales documents with SAP APO |