How To Fix CY451 - Changes cannot be made to planned orders for planned independent reqmts

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 451

• Message text: Changes cannot be made to planned orders for planned independent reqmts

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY451 - Changes cannot be made to planned orders for planned independent reqmts ?

  The SAP error message CY451 ("Changes cannot be made to planned orders for planned independent requirements") typically occurs when you attempt to modify a planned order that is linked to planned independent requirements (PIRs). This error is a safeguard in the SAP system to ensure that the integrity of the planning process is maintained.
  Cause:
  
  Planned Independent Requirements (PIRs): The planned order is generated based on PIRs, and any changes to these orders are restricted to maintain the consistency of the planning data.
  Status of the Planned Order: The planned order may be in a status that does not allow changes (e.g., released or converted to production orders).
  Configuration Settings: The system may be configured to prevent changes to planned orders that are linked to PIRs.
  
  Solution:
  
  Check the Status of the Planned Order: Ensure that the planned order is not in a status that prohibits changes. If it is released or converted, you may need to reverse those actions before making changes.
  Adjust the PIRs: If you need to change the planned order, consider adjusting the underlying planned independent requirements instead. This may involve changing the PIR quantities or dates, which will then affect the planned orders generated from them.
  Use the Correct Transaction: If you are trying to change a planned order, ensure you are using the appropriate transaction code (e.g., MD04 for stock/requirements list) and that you are following the correct procedure for modifying planned orders.
  Consult Configuration Settings: If you have access to configuration settings, check if there are any specific settings that restrict changes to planned orders linked to PIRs. You may need to consult with your SAP Basis or configuration team for assistance.
  Create New Planned Orders: If changes are not possible, consider creating new planned orders based on the updated requirements.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD04 (Stock/Requirements List), MD61 (Create Planned Independent Requirements), and MD02 (MD Planning).
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to error CY451.
  Documentation: Review SAP documentation on planned orders and independent requirements for a deeper understanding of how these elements interact within the planning process.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or refer to SAP community forums for further assistance.