3694626 - Custom fields cannot be published in SAP Fiori for SAP S/4HANA with error "Operation failed. Reassign field XYZ to one package first."

• Unable to publish custom fields in the Custom Fields app despite the package being assigned to the fields.
• Error occurs during the publishing process of custom fields: "Operation failed. Reassign field XYZ to one package first."

Custom Fields

custom fields, publish error, SAP Fiori, SAP S/4HANA, SCFD_FIELDVIEWER, SE16, TADIR, DEVCLASS, package reassignment, Register Extensions for Transport, SE03, transport issue, enhancements, metadata, generated artifacts. , KBA , BC-SRV-APS-EXT-FLD , Custom Fields , Problem