Message type: E = Error
Message class: QF - Defects Recording
Message number: 155
Message text: Serial number &1 can no longer be changed
You can no longer delete the serial number &v1& from the object list for
inspection lot &v2&, because defects or results have already been
recorded for this serial number.
You can only delete the serial number, if no defects or single values
are assigned to this serial number in inspection lot &v2&.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
If you want to delete the serial number, you should delete the defects
recorded for this serial number and set the attribute for the single
value to invalid.
Error message extract from SAP system. Copyright SAP SE.
QF155
- Serial number &1 can no longer be changed ?The SAP error message QF155, which states "Serial number &1 can no longer be changed," typically occurs in the context of handling serial numbers in the SAP system, particularly in modules related to inventory management, production, or sales and distribution. This error indicates that the system has determined that the serial number in question is in a state where it cannot be modified. Causes: Status of the Serial Number: The serial number may have been assigned to a document (like a delivery, production order, or sales order) that has already been processed or completed. Once a serial number is assigned and the document is finalized, changes to the serial number are often restricted. Document Flow: If the serial number is linked to a document that has been posted (e.g., goods issue, delivery, invoice), the system locks the serial number to maintain data integrity. Configuration Settings: Certain configuration settings in the SAP system may restrict
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