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

QI304 - Overview

• 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