How To Fix QB123 - Blocks are not active because of the control key in material master

QB123 - Overview

• Message type: E = Error

• Message class: QB - Message IDs for QM in procurement

• Message number: 123

• Message text: Blocks are not active because of the control key in material master

What causes this issue?

The QM control key in the material master means that blocks are not
active.

System Response

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?

If you want the blocks to be active, you must use a different control
key in the material master.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QB123 - Blocks are not active because of the control key in material master ?

  The SAP error message QB123 indicates that the system is unable to activate the quality inspection (QI) blocks for a material due to the control key defined in the material master record. This typically occurs in the context of quality management (QM) processes within SAP.
  
  Cause:
  The error is caused by the control key assigned to the material in the material master record. The control key determines how the system handles quality management processes, including inspection lot creation and the activation of QI blocks. If the control key does not allow for the activation of QI blocks, the system will generate this error.
  
  Solution:
  To resolve the QB123 error, you can follow these steps:
  
  
  Check the Material Master Record:
  
  Go to the transaction code MM02 (Change Material) or MM03 (Display Material).
  Enter the material number and select the appropriate views (usually the Basic Data and Quality Management views).
  Check the control key assigned in the Quality Management view.
  
  
  
  Review