How To Fix /SCMTMS/TRQ689 - &1; Unit conversion error at volume summation of subordinate items

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/TRQ -

• Message number: 689

• Message text: &1; Unit conversion error at volume summation of subordinate items

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/TRQ689 - &1; Unit conversion error at volume summation of subordinate items ?

  The SAP error message /SCMTMS/TRQ689 &1; Unit conversion error at volume summation of subordinate items typically occurs in the context of SAP Transportation Management (TM) when there is an issue with unit conversion during the volume summation of subordinate items in a transportation request or shipment.
  Cause:
  
  Unit of Measure (UoM) Mismatch: The subordinate items (e.g., products or materials) may have different units of measure that cannot be converted properly. For example, one item might be measured in liters while another is in gallons.
  Configuration Issues: There may be issues with the configuration of unit conversions in the system. If the conversion factors are not defined correctly, the system will not be able to perform the necessary calculations.
  Data Inconsistencies: There could be inconsistencies in the master data for the materials involved, such as incorrect or missing unit of measure settings.
  
  Solution:
  
  
  Check Unit of Measure Settings:
  
  Review the unit of measure settings for the subordinate items involved in the transportation request. Ensure that they are consistent and that the necessary conversion factors are defined in the system.
  You can check this in the material master data (transaction code MM03) under the "Basic Data" or "Sales Org. Data" views.
  
  
  
  Define Conversion Factors:
  
  If the units of measure are different, ensure that the conversion factors are defined in the system. This can be done in the configuration settings (transaction code OMT3E) where you can maintain unit of measure conversions.
  
  
  
  Review Transportation Request:
  
  Check the transportation request or shipment for any inconsistencies in the item details. Ensure that all items have the correct unit of measure and that they are compatible for summation.
  
  
  
  Data Consistency Check:
  
  Perform a data consistency check to identify any discrepancies in the master data or transaction data that could be causing the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to transportation management and unit of measure handling for additional guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide specific notes or patches that address the issue.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Material Master), OMT3E (Maintain Unit of Measure Conversion).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify and resolve the unit conversion error in SAP TM.