How To Fix WES_OUTBOUND108 - No unit of measure could be defined for material &1

SAP Error Message - Details

• Message type: E = Error

• Message class: WES_OUTBOUND - Messages for Outbound Services

• Message number: 108

• Message text: No unit of measure could be defined for material &1

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 WES_OUTBOUND108 - No unit of measure could be defined for material &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WES_OUTBOUND108 No unit of measure could be defined for material &1
  
  Cause:
  This error occurs when the system tries to process or transfer data related to a material, but it cannot find or determine a valid unit of measure (UoM) for that material. The unit of measure is essential for quantity-related operations such as goods movements, deliveries, or outbound processing.
  Common reasons include:  
  
  The material master record does not have a base unit of measure maintained.  
  The unit of measure is missing or incorrectly maintained in the relevant views (e.g., Basic Data 1).  
  The unit of measure is not defined or recognized in the system's unit of measure configuration.  
  The outbound process or interface expects a unit of measure, but none is available or mapped for the material.
  
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to transaction MM03 (Display Material) and enter the material number.
  Navigate to the Basic Data 1 view.
  Verify that the Base Unit of Measure is maintained correctly.
  If missing, maintain the base unit of measure in MM02 (Change Material).
  
  
  
  Verify Unit of Measure Configuration:
  
  Use transaction CUNI to check if the unit of measure exists and is active in the system.
  If the unit of measure is missing, create or activate it as needed.
  
  
  
  Check Integration/Interface Settings:
  
  If this error occurs during outbound processing (e.g., EDI, IDoc, or ALE), ensure that the unit of measure is correctly mapped and transferred.
  Review the relevant outbound message or interface configuration to confirm that the unit of measure field is populated.
  
  
  
  Reprocess the Transaction:
  
  After correcting the unit of measure, retry the outbound process or transaction.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:  
  
  MM03: Display Material  
  MM02: Change Material  
  CUNI: Units of Measure  
  WE02 / WE05: IDoc monitoring (if related to IDoc processing)  
  
  
  
  SAP Notes:  
  
  Check SAP Notes related to material master and unit of measure issues if the problem persists.
  
  
  
  Additional Tips:  
  
  Always ensure consistency between the material master data and the units of measure used in business processes.  
  If custom developments or interfaces are involved, verify that the unit of measure field is correctly handled in the code.
  
  
  
  
  If you provide more context (e.g., transaction or process where the error occurs), I can help tailor the solution further.