How To Fix 29141 - Base units of measure (&/&) for the materials are different

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 141

• Message text: Base units of measure (&/&) for the materials are different

What causes this issue?

You want to create a variant BOM.
The material you want to create a variant for has the base unit of
measure &V1&. The material for which the variant BOM was first created
has the base unit of measure &V2&.

System Response

The system checks whether the base units of measure of the materials
are the same.

How to fix this error?

As the base units of measure are different in this case, you cannot
create a variant of the selected variant BOM for the material required.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29141 - Base units of measure (&/&) for the materials are different ?

  The SAP error message 29141, which states "Base units of measure (&/&) for the materials are different," typically occurs when there is an attempt to perform a transaction involving multiple materials that have different base units of measure. This can happen in various scenarios, such as during the creation of a purchase order, sales order, or when performing inventory management tasks.
  Cause:
  The primary cause of this error is that the materials involved in the transaction have different base units of measure defined in their material master records. The base unit of measure is the unit in which the material is managed in inventory and is crucial for ensuring consistency in transactions.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Material Master Records:
  
  Go to the material master records for the materials involved in the transaction.
  Use transaction code MM03 to display the material master.
  Check the "Basic Data" view for each material to see the base unit of measure.
  
  
  
  Standardize Base Units of Measure:
  
  If the materials are supposed to be the same or interchangeable, consider standardizing their base units of measure.
  You can change the base unit of measure for one of the materials using transaction code MM02 (Change Material) if it is appropriate to do so.
  
  
  
  Review Transaction:
  
  Ensure that the transaction you are trying to perform is appropriate for the materials involved. If they are fundamentally different products, you may need to handle them separately.
  
  
  
  Consult with Business Process Owners:
  
  If you are unsure about changing the base unit of measure, consult with relevant stakeholders or business process owners to understand the implications of such changes.
  
  
  
  Use Alternative Methods:
  
  If changing the base unit of measure is not feasible, consider using alternative methods to process the transaction, such as creating separate orders for each material.
  
  
  
  Related Information:
  
  Material Master Views: The material master has various views (Basic Data, Purchasing, Sales, etc.) that can affect how materials are handled in transactions. Ensure that all relevant views are consistent.
  Unit of Measure Conversion: SAP allows for unit of measure conversion, but this must be set up correctly in the material master. Check if conversion factors are defined if you need to work with different units.
  Documentation and Training: Ensure that users are trained on how to manage materials and understand the importance of base units of measure in SAP.
  
  By following these steps, you should be able to resolve the error and proceed with your transaction.