How To Fix MEPO031 - Confirmation control key cannot now be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: MEPO - New Purchase Order Dialog

• Message number: 031

• Message text: Confirmation control key cannot now be changed

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 MEPO031 - Confirmation control key cannot now be changed ?

  The SAP error message MEPO031, which states "Confirmation control key cannot now be changed," typically occurs in the context of purchasing documents, particularly when dealing with purchase orders or contracts that have already been processed or confirmed. This error indicates that the system does not allow changes to the confirmation control key for the specified document due to its current status.
  Cause:
  
  Document Status: The purchase order or contract may have already been released, confirmed, or processed in a way that locks certain fields from being changed.
  Configuration Settings: The confirmation control key may be configured in such a way that it cannot be modified after certain actions have been taken on the document.
  Dependencies: There may be dependencies on other documents or processes that prevent changes to the confirmation control key.
  
  Solution:
  
  Check Document Status: Review the status of the purchase order or contract. If it has been confirmed or processed, you may need to create a new document or adjust the existing one through other means.
  Use a Different Document: If the confirmation control key needs to be changed, consider creating a new purchase order or contract with the desired confirmation control key.
  Consult Configuration: If you have access to configuration settings, check the settings related to confirmation control keys in the purchasing module. You may need to consult with your SAP administrator or functional consultant to understand the implications of changing these settings.
  Transaction Codes: Use transaction codes like ME22N (Change Purchase Order) to check the details of the document and see if there are any options available for modification.
  Error Documentation: Refer to SAP Notes or documentation for any specific guidance related to this error message. Sometimes, SAP provides specific notes that address known issues or provide workarounds.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional context.
  User Roles and Permissions: Ensure that you have the necessary permissions to make changes to the document. Sometimes, user roles can restrict certain actions.
  Training and Documentation: Review any internal training materials or documentation related to purchasing processes in your organization, as they may provide insights into handling such errors.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.