How To Fix ME149 - & requisition(s) already changed by other users

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 149

• Message text: & requisition(s) already changed by other users

What causes this issue?

From within list processing, you wish to change a purchase requisition
that has in the meantime been changed by another user.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Check the requisition before making your changes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ME149 - & requisition(s) already changed by other users ?

  The SAP error message ME149 indicates that a requisition has already been changed by another user. This typically occurs in the context of purchase requisitions when multiple users are trying to edit the same requisition simultaneously. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Concurrent Access: The primary cause of this error is that another user has modified the purchase requisition you are trying to edit. SAP locks the requisition for editing to prevent data inconsistencies.
  Session Timeout: If a user has been inactive for a while, their session may time out, and any changes they made may not be saved properly, leading to conflicts.
  Background Jobs: Sometimes, background jobs or batch processes may also update requisitions, causing this error when another user tries to access them.
  
  Solutions:
  
  Refresh the Data: If you encounter this error, try refreshing the screen or reloading the requisition. This will allow you to see the most recent changes made by other users.
  Check Change Logs: Use transaction codes like ME53N (Display Purchase Requisition) to check the change logs and see what changes were made and by whom.
  Wait and Retry: If you suspect another user is actively editing the requisition, wait for them to finish and then try again.
  Communicate with Team Members: If you are working in a team, communicate with your colleagues to ensure that only one person is editing a requisition at a time.
  Use Lock Management: If you have administrative access, you can check for locks on the requisition using transaction code SM12. This will show you which user has locked the requisition.
  Review User Permissions: Ensure that users have the appropriate permissions to edit requisitions, as sometimes permission issues can lead to unexpected behavior.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME51N (Create Purchase Requisition), ME52N (Change Purchase Requisition), and ME53N (Display Purchase Requisition).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its system, and there may be specific notes addressing this error.
  User Training: Ensure that users are trained on how to handle purchase requisitions and the importance of checking for locks before making changes.
  
  By following these steps, you should be able to resolve the ME149 error and manage purchase requisitions more effectively in SAP.