How To Fix DIWP1171 - Reducing the confirmed work is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: DIWP1 - Revision Planning

• Message number: 171

• Message text: Reducing the confirmed work is not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DIWP1171 - Reducing the confirmed work is not allowed ?

  The SAP error message DIWP1171, which states "Reducing the confirmed work is not allowed," typically occurs in the context of production planning and control, particularly when dealing with confirmed production orders or operations. This error indicates that there is an attempt to reduce the amount of work that has already been confirmed in the system, which is not permitted under certain conditions.
  Cause:
  
  Confirmed Work: The error arises when there is an attempt to change the confirmed quantity of work (e.g., reducing the quantity of a production order) that has already been confirmed in the system.
  Status of the Order: The production order may be in a status that does not allow for changes to confirmed quantities.
  Dependencies: There may be dependencies or linked operations that prevent the reduction of confirmed work.
  System Settings: Configuration settings in the system may restrict changes to confirmed work.
  
  Solution:
  
  Check Order Status: Verify the status of the production order. If the order is already confirmed, you may need to cancel the confirmation before making changes.
  Unconfirm the Work: If possible, unconfirm the work before attempting to reduce the confirmed quantity. This can usually be done through the production order transaction (e.g., CO02).
  Review Dependencies: Check for any dependencies or linked operations that may be preventing the reduction of confirmed work.
  Consult Configuration: If the issue persists, consult with your SAP configuration team to review the settings related to production order confirmations and see if adjustments can be made.
  Use Alternative Methods: If reducing the confirmed work is not possible, consider alternative methods such as creating a new order or adjusting the production plan.
  
  Related Information:
  
  Transaction Codes: Common transaction codes related to production orders include CO01 (Create Production Order), CO02 (Change Production Order), and CO03 (Display Production Order).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Documentation: Review SAP documentation