How To Fix MW234 - You cannot change the source of supply

MW234 - Overview

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 234

• Message text: You cannot change the source of supply

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.

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MW234 - Details

• The SAP error message MW234, which states "You cannot change the source of supply," typically occurs when you attempt to modify the source of supply for a material that is already assigned to a purchase order, contract, or other procurement document. This restriction is in place to maintain data integrity and ensure that existing procurement processes are not disrupted.
  Causes:
  
  Existing Procurement Documents: The material is already linked to a purchase order, contract, or scheduling agreement.
  Source List Restrictions: The source list for the material may have been set to prevent changes.
  Material Status: The material may have a status that restricts changes to its procurement settings.
  Locked Records: The record may be locked due to ongoing transactions or processes.
  
  Solutions:
  
  Check Existing Documents: Review any existing purchase orders, contracts, or scheduling agreements that reference the material. If changes are necessary, you may need to adjust or delete these documents first.
  Source List Maintenance: If the source list