How To Fix BM012 - Mark primary unit for ISO code only once

BM012 - Overview

• Message type: E = Error

• Message class: BM - Development class BZME - units of measure

• Message number: 012

• Message text: Mark primary unit for ISO code only once

What causes this issue?

You have used the same ISO code for more than one unit of measure and
also flagged several units of measure as primary units for this ISO
code. You can only flag one unit of measure as a primary unit for one
ISO code.

System Response

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

How to fix this error?

Flag one unit as a primary unit for each ISO code.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BM012 - Mark primary unit for ISO code only once ?

  The SAP error message BM012 ("Mark primary unit for ISO code only once") typically occurs in the context of material master data management, particularly when dealing with units of measure (UoM) and ISO codes. This error indicates that there is an issue with how the primary unit of measure is defined for a specific material in relation to its ISO code.
  
  Cause:
  The error is usually caused by one of the following reasons:
  
  Duplicate Entries: The primary unit of measure for a material has been marked more than once for the same ISO code in the material master data.
  Incorrect Configuration: There may be a configuration issue in the unit of measure settings or in the material master data setup.
  Data Inconsistency: There could be inconsistencies in the data entered for the material master, particularly in the units of measure section.
  
  
  Solution:
  To resolve the BM012 error, you can follow these steps:
  
  
  Check Material Master Data:
  
  Go to the