How To Fix RSUOM068 - Source quantity not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: RSUOM - BW: Conversion of Units of Measure

• Message number: 068

• Message text: Source quantity not unique

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 RSUOM068 - Source quantity not unique ?

  The SAP error message RSUOM068: Source quantity not unique typically occurs in the context of unit of measure (UoM) conversions or when dealing with material movements in SAP. This error indicates that the system has encountered multiple source quantities that match the criteria for a given operation, but it cannot determine which one to use because they are not unique.
  Causes:
  
  Multiple UoM Entries: There may be multiple entries for the same material with different units of measure in the system, leading to ambiguity.
  Configuration Issues: The configuration of the material master or the unit of measure settings may not be set up correctly, causing conflicts.
  Data Inconsistencies: There could be inconsistencies in the data, such as duplicate entries or incorrect mappings between base and alternative units of measure.
  Batch Management: If batch management is enabled, there may be multiple batches with the same characteristics that are causing the conflict.
  
  Solutions:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the unit of measure settings. Ensure that the base unit of measure and alternative units of measure are correctly defined and do not have duplicates.
  
  
  
  Review UoM Conversions:
  
  Check the UoM conversion settings in the material master. Ensure that the conversion factors are correctly defined and that there are no conflicting entries.
  
  
  
  Data Cleanup:
  
  If there are duplicate entries or inconsistencies, clean up the data. This may involve deleting or merging duplicate records or correcting any erroneous entries.
  
  
  
  Batch Management Review:
  
  If batch management is in use, review the batches associated with the material. Ensure that there are no conflicting batches that could lead to ambiguity.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the error no longer occurs. This may involve simulating the transaction that caused the error.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MM02 (Change Material), and MMBE (Stock Overview) to investigate material data.
  Unit of Measure Configuration: Understanding how UoM is configured in SAP can help prevent similar issues in the future. This includes knowing how to set up and maintain UoM in the material master.
  SAP Community and Forums: Engaging with the SAP community can provide additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP logistics and material management.