How To Fix LB090 - Ref. material base UoM differs => units of measure not transferred

SAP Error Message - Details

• Message type: E = Error

• Message class: LB - Logistics: Batch - Management

• Message number: 090

• Message text: Ref. material base UoM differs => units of measure not transferred

What causes this issue?

The <DS:GLOS.Base_unit_of_measure>base unit of measure</> of the
reference material differs from that of the current material.

System Response

The <DS:DE.LRMEI_WS>proportion or product units</> are not transferred
from the reference material.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LB090 - Ref. material base UoM differs => units of measure not transferred ?

  The SAP error message LB090, which states "Ref. material base UoM differs => units of measure not transferred," typically occurs in the context of material management and inventory management processes. This error indicates that there is a mismatch between the unit of measure (UoM) of the reference material and the unit of measure being used in the transaction.
  Cause:
  
  Unit of Measure Mismatch: The primary cause of this error is that the base unit of measure (UoM) of the reference material does not match the UoM of the material being processed in the transaction. This can happen during goods movements, stock transfers, or when creating purchase orders.
  Configuration Issues: There may be configuration issues in the material master data or in the settings for the specific transaction type.
  Material Master Data: The material master data for the reference material may not be set up correctly, leading to discrepancies in UoM.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record of both the reference material and the material being processed.
  Verify that the base unit of measure (UoM) is consistent and correctly defined for both materials.
  
  
  
  Adjust UoM in Transaction:
  
  If you are entering a transaction manually, ensure that you are using the correct UoM that matches the reference material's base UoM.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SAP system related to units of measure. This includes settings in the material management module and any relevant transaction codes.
  Ensure that the UoM conversion factors are correctly defined if you are using multiple units of measure.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific transaction you are performing to ensure that you are following the correct procedures.
  
  
  
  Testing:
  
  After making adjustments, perform a test transaction to ensure that the error does not reoccur.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM03 (Display Material), MM02 (Change Material), or MM01 (Create Material) to check or modify material master data.
  Unit of Measure Settings: Familiarize yourself with the settings in the SAP system for units of measure, including how to define and manage them.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in material management.