How To Fix MD370 - Vendor &1 is being used by material &2, therefore cannot be changed

MD370 - Overview

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 370

• Message text: Vendor &1 is being used by material &2, therefore cannot 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MD370 - Vendor &1 is being used by material &2, therefore cannot be changed ?

  The SAP error message MD370 indicates that a vendor is currently assigned to a material, and as a result, you cannot make changes to the vendor information for that material. This error typically arises in the context of materials management and procurement processes within SAP.
  
  Cause:
  The error occurs when:
  
  You attempt to change the vendor for a material that is already linked to that vendor in the system.
  The material is being used in a purchasing document (like a purchase order or contract) or is part of a material master record that is locked for changes.
  There are existing transactions or dependencies that prevent the modification of the vendor assignment.
  
  
  Solution:
  To resolve the MD370 error, you can take the following steps:
  
  
  Check Existing Assignments:
  
  Use transaction codes like MM03 (Display Material) to check the material master data and see the current vendor assignments.
  Verify if the material is linked to any open purchase orders, contracts, or other procurement