Solution : https://service.sap.com/sap/support/notes/430244 (SAP Service marketplace login required)
Summary :
When using a specific customer namespace to modify a user-defined field through substitution or batch input in SAP, the system may fail to execute changes and display error messages CJ727 and CJ726, indicating prohibited field content changes and lack of flagged field attributes. This issue arises because the check modules responsible for verifying field availability do not evaluate customer fields, particularly failing to include fields starting with a / in the verification process. To resolve this, the recommended action is to implement the provided correction to ensure proper field attribute checks.
Key words :
> -> cjck_pr _field_attr_init additional key words cj 726, specific customer namespace, user-defined field, field attributes flagged, field <field, customer fields, batch input, system outputs, check modules, solution implement