How To Fix QI304 - Characteristic with confirmation number &1 (lot &2) is already blocked

SAP Error Message - Details

• Message type: E = Error

• Message class: QI - Notifications for interface modules for connecting subsyst.

• Message number: 304

• Message text: Characteristic with confirmation number &1 (lot &2) is already blocked

What causes this issue?

The results for the inspection characteristic with confirmation
number &V1& were not accepted because the inspection characteristic is
already blocked in another transaction.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Make sure the result confirmation is sent over the IDI interface
or over the confirmation transaction that is blocking the inspection
characteristic.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QI304 - Characteristic with confirmation number &1 (lot &2) is already blocked ?

  The SAP error message QI304 indicates that a characteristic associated with a confirmation number and lot is already blocked. This typically occurs in the context of quality management (QM) processes, particularly when dealing with inspection lots and their characteristics.
  Cause:
  
  Blocked Characteristics: The characteristic in question has been marked as blocked due to a previous inspection or quality issue. This can happen if there was a defect or if the characteristic was manually blocked by a user.
  Duplicate Confirmation: The system may be trying to process a confirmation for a characteristic that has already been confirmed and subsequently blocked.
  System Configuration: There may be specific configurations or settings in the quality management module that dictate how characteristics are handled, leading to this error.
  
  Solution:
  
  Check Characteristic Status: Review the status of the characteristic in the inspection lot. You can do this by navigating to the inspection lot in the SAP GUI and checking the characteristics assigned to it.
  Unblock the Characteristic: If the characteristic is blocked and you have the necessary permissions, you can unblock it. This typically involves going to the inspection lot and changing the status of the characteristic.
  Review Confirmation Process: Ensure that you are not trying to confirm a characteristic that has already been confirmed. If a confirmation has already been processed, you may need to adjust your approach.
  Consult with Quality Management Team: If you are unsure about the implications of unblocking a characteristic or if it is part of a larger quality issue, consult with your quality management team or SAP support for guidance.
  Check for System Notes or Updates: Sometimes, specific issues may be addressed in SAP notes or updates. Check the SAP support portal for any relevant notes that may address this error.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like QA32 (for displaying inspection lots) or QA11 (for recording results) to investigate the issue further.
  Quality Management Configuration: Understanding the configuration settings in the Quality Management module can help prevent similar issues in the future.
  SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for more detailed assistance.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.