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

/SCMTMS/TRQ689 - Overview

• 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

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 /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