How To Fix ME057 - Unit of measure & not defined (please check your input)

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 057

• Message text: Unit of measure & not defined (please check your input)

INCLUDE NA_T006_UNDEF LANGUAGE EN

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ME057 - Unit of measure & not defined (please check your input) ?

  The SAP error message ME057 ("Unit of measure & not defined (please check your input)") typically occurs when you are trying to enter a unit of measure (UoM) in a transaction related to purchasing or inventory management, and the system does not recognize the specified unit of measure. This can happen for various reasons, including:
  Causes:
  
  Undefined Unit of Measure: The unit of measure you are trying to use has not been defined in the system.
  Incorrect UoM in Master Data: The unit of measure may not be correctly assigned to the material in the material master data.
  Missing UoM in the UoM Table: The unit of measure may not exist in the relevant UoM tables (e.g., T006).
  Configuration Issues: There may be configuration issues in the system that prevent the recognition of the unit of measure.
  Data Entry Error: There could be a typographical error in the unit of measure you entered.
  
  Solutions:
  
  
  Check Unit of Measure Definition:
  
  Go to transaction code CUNI (Unit of Measure Conversion) or T006 (Unit of Measure) to check if the unit of measure is defined.
  If it is not defined, you will need to create it.
  
  
  
  Verify Material Master Data:
  
  Use transaction code MM03 to display the material master data and check the units of measure assigned to the material.
  Ensure that the unit of measure you are trying to use is listed in the material master.
  
  
  
  Check UoM Configuration:
  
  Ensure that the unit of measure is correctly configured in the system. This may involve checking the configuration settings in the SAP IMG (Implementation Guide).
  Navigate to Logistics -> General -> Master Data -> Units of Measure in the IMG to review the settings.
  
  
  
  Correct Data Entry:
  
  Double-check the unit of measure you entered for any typographical errors. Ensure that it matches the defined units in the system.
  
  
  
  Consult with SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting SAP documentation for further assistance.
  
  
  
  Related Information:
  
  Unit of Measure Types: Understand the different types of units of measure (e.g., base unit, alternative unit) and how they are used in SAP.
  Material Master Views: Familiarize yourself with the different views of the material master, especially the purchasing and sales views where units of measure are defined.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to unit of measure errors.
  
  By following these steps, you should be able to identify and resolve the ME057 error in SAP.