How To Fix CO766 - Backflush: Control key & does not allow confirmation

SAP Error Message - Details

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 766

• Message text: Backflush: Control key & does not allow confirmation

What causes this issue?

You have designated a component for backflushing that is assigned to an
operation/phase whose control key does not allow confirmation.
If you want to carry out backflushing then confirmation must also be
allowed.

How to fix this error?

Choose a control key that allows confirmation in the operation to which
the component is assigned or delete the indicator for backflushing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CO766 - Backflush: Control key & does not allow confirmation ?

  The SAP error message CO766 indicates that the control key used for backflushing does not allow for confirmation. This typically occurs in the context of production orders or process orders when trying to confirm the backflush of components.
  Cause:
  The error can be caused by several factors, including:
  
  
  Control Key Configuration: The control key assigned to the production order or process order may not be configured to allow confirmations. Control keys determine how operations are processed, including whether backflushing is permitted.
  
  
  Order Type Settings: The order type associated with the production order may have settings that restrict confirmations or backflushing.
  
  
  Material Master Settings: The material master record for the components may have settings that prevent backflushing.
  
  
  Status of the Order: The production order may be in a status that does not allow confirmations (e.g., if it is already completed or closed).
  
  
  Solution:
  To resolve the CO766 error, you can take the following steps:
  
  
  Check Control Key:
  
  Go to the transaction code OPKP to review the control key settings.
  Ensure that the control key assigned to the order allows for backflushing and confirmations. Look for the "Backflush" and "Confirmation" options in the control key configuration.
  
  
  
  Review Order Type:
  
  Check the settings for the order type in transaction code OPL8 to ensure that it allows confirmations and backflushing.
  
  
  
  Material Master Review:
  
  Check the material master records for the components involved in the backflush. Ensure that the backflush indicator is set correctly in the material master (transaction code MM02).
  
  
  
  Order Status:
  
  Verify the status of the production order. If the order is already completed or closed, you will not be able to confirm it. You may need to reopen the order if necessary.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific configurations related to your organization's processes.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CO11N: Confirm production orders.
  COGI: Analyze and correct errors in backflush confirmations.
  MM02: Change material master data.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to the CO766 error.
  
  
  User Roles and Authorizations: Ensure that the user attempting the confirmation has the necessary authorizations to perform backflush confirmations.
  
  
  By following these steps, you should be able to identify the cause of the CO766 error and implement the necessary changes to allow for successful backflushing and confirmations.