How To Fix CX_MSR_TRC126 - Unit of measure &1 is not allowed for material &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CX_MSR_TRC - Message texts in mult-step returns controller

• Message number: 126

• Message text: Unit of measure &1 is not allowed for material &2

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 CX_MSR_TRC126 - Unit of measure &1 is not allowed for material &2 ?

  The SAP error message CX_MSR_TRC126 indicates that there is an issue with the unit of measure (UoM) being used for a specific material in the system. This error typically arises in scenarios involving material management, inventory management, or when processing transactions related to materials.
  Cause:
  The error message "Unit of measure &1 is not allowed for material &2" suggests that the unit of measure specified (represented by &1) is not valid or not configured for the material (represented by &2) in question. This can occur due to several reasons:
  
  Incorrect Unit of Measure: The unit of measure being used is not defined for the material in the material master data.
  Configuration Issues: The unit of measure may not be set up correctly in the system configuration.
  Material Master Data: The material master record may not have the appropriate units of measure assigned.
  Transaction Context: The context in which the transaction is being executed may not support the specified unit of measure.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03).
  Check the "Basic Data" and "Sales Org. Data" views to ensure that the unit of measure is correctly defined for the material.
  Verify that the unit of measure you are trying to use is listed in the "Units of Measure" section.
  
  
  
  Review Unit of Measure Configuration:
  
  Ensure that the unit of measure is defined in the system (transaction code CUNI).
  Check if the unit of measure is assigned to the appropriate material type and is allowed for the specific transaction.
  
  
  
  Adjust Transaction Context:
  
  If the error occurs during a specific transaction (e.g., goods movement, sales order), ensure that the transaction supports the unit of measure you are trying to use.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for any specific requirements or configurations related to units of measure for the materials you are working with.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, especially if it appears to be a system configuration issue.
  
  
  
  Related Information:
  
  Unit of Measure Types: Understand the different types of units of measure (base unit, alternative unit, etc.) and how they are used in SAP.
  Material Master Views: Familiarize yourself with the various views in the material master that relate to units of measure.
  Transaction Codes: Common transaction codes related to material management include MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material).
  
  By following these steps, you should be able to identify the cause of the error and implement the necessary corrections to resolve it.