How To Fix PMRP020 - Unit of measure &1 is different from &2

SAP Error Message - Details

• Message type: E = Error

• Message class: PMRP - Messages for pMRP

• Message number: 020

• Message text: Unit of measure &1 is different from &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 PMRP020 - Unit of measure &1 is different from &2 ?

  The SAP error message PMRP020 indicates that there is a discrepancy between the unit of measure (UoM) of a material or product in a particular context. Specifically, it means that the unit of measure being used in a transaction or operation does not match the expected unit of measure defined in the system for that material.
  Cause:
  
  Mismatch in Units of Measure: The most common cause of this error is that the unit of measure used in the transaction (e.g., during a goods movement, production order, or inventory management) is different from the unit of measure defined in the material master record.
  Incorrect Configuration: There may be an issue with the configuration of the material master data, where the base unit of measure or alternative units of measure are not set up correctly.
  Data Entry Errors: Users may have entered the wrong unit of measure during data entry, leading to this error.
  Different UoM in Different Contexts: The same material might have different units of measure defined for different processes (e.g., purchasing vs. sales), and the system is expecting a specific one.
  
  Solution:
  
  
  Check Material Master Data: 
  
  Go to the material master record (transaction code MM03) and verify the units of measure defined for the material. Ensure that the base unit of measure and any alternative units of measure are correctly set up.
  
  
  
  Review Transaction Data: 
  
  Check the transaction that triggered the error. Ensure that the unit of measure being used matches the expected unit of measure for that material in the context of the transaction.
  
  
  
  Correct Data Entry: 
  
  If the error is due to incorrect data entry, correct the unit of measure in the transaction and try again.
  
  
  
  Configuration Review: 
  
  If the issue persists, review the configuration settings in the system related to units of measure. This may involve checking the settings in the customizing (transaction SPRO) for material management and ensuring that the units of measure are correctly defined and linked.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help resources for further guidance on handling unit of measure issues.
  
  
  
  Related Information:
  
  Unit of Measure Types: Understand the different types of units of measure in SAP, such as base unit, alternative units, and sales/purchase units.
  Material Master Views: Familiarize yourself with the different views in the material master (Basic Data, Purchasing, Sales, etc.) where units of measure are defined.
  Transaction Codes: Common transaction codes related to material management include MM01 (Create Material), MM02 (Change Material), MM03 (Display Material), and MIGO (Goods Movement).
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or bugs related to unit of measure handling.
  
  By following these steps, you should be able to resolve the PMRP020 error and ensure that the unit of measure used in your transactions aligns with the definitions in the material master.