How To Fix MM349 - Alternative unit of measure cannot be deleted; it is used in BOMs

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 349

• Message text: Alternative unit of measure cannot be deleted; it is used in BOMs

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MM349 - Alternative unit of measure cannot be deleted; it is used in BOMs ?

  The SAP error message MM349 indicates that you are trying to delete an alternative unit of measure (UoM) that is currently being used in one or more Bill of Materials (BOMs). This restriction is in place to maintain data integrity, as the alternative UoM is linked to existing BOMs and removing it could lead to inconsistencies.
  
  Cause:
  The primary cause of this error is that the alternative unit of measure you are attempting to delete is actively referenced in BOMs. SAP does not allow the deletion of UoMs that are in use to prevent potential issues with material planning and inventory management.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Usage: Determine where the alternative unit of measure is being used. You can do this by checking the BOMs that reference the material in question. You can use transaction codes like CS03 (Display BOM) to view the BOMs and see if the