How To Fix WWGR001 - It is not possible to convert ISO unit of measure & to SAP code

SAP Error Message - Details

• Message type: E = Error

• Message class: WWGR - Distribution of material groups

• Message number: 001

• Message text: It is not possible to convert ISO unit of measure & to SAP code

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 WWGR001 - It is not possible to convert ISO unit of measure & to SAP code ?

  The SAP error message WWGR001 indicates that there is an issue with converting an ISO unit of measure to an SAP unit of measure. This typically occurs when the system encounters a unit of measure that it does not recognize or cannot map to an existing SAP unit.
  Cause:
  
  Missing Unit of Measure: The ISO unit of measure being used is not defined in the SAP system.
  Incorrect Configuration: There may be a configuration issue where the mapping between ISO units and SAP units is not set up correctly.
  Data Entry Error: The unit of measure may have been entered incorrectly in the transaction or master data.
  Incompatibility: The ISO unit may not be compatible with the expected units in the SAP system.
  
  Solution:
  
  
  Check Unit of Measure Configuration:
  
  Go to the transaction code CUNI (Unit of Measure Conversion) in SAP.
  Verify if the ISO unit of measure is defined in the system. If it is not, you may need to create it.
  
  
  
  Create or Update Unit of Measure:
  
  If the unit is missing, you can create a new unit of measure by using the transaction code CUNI and adding the necessary details.
  Ensure that the new unit is correctly mapped to the corresponding SAP unit of measure.
  
  
  
  Review Master Data:
  
  Check the master data (e.g., material master, vendor master) to ensure that the correct unit of measure is being used.
  Correct any discrepancies in the unit of measure fields.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for any specific guidelines related to unit of measure conversions.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Unit of Measure Types: Understand the different types of units of measure in SAP (e.g., base units, alternative units).
  ISO Standards: Familiarize yourself with the ISO standards for units of measure to ensure compliance.
  Transaction Codes: Common transaction codes related to units of measure include:
  
  CUNI: Maintain Units of Measure
  MM02: Change Material Master
  MM03: Display Material Master
  
  
  
  By following these steps, you should be able to resolve the WWGR001 error and ensure that the unit of measure conversions are functioning correctly in your SAP system.