How To Fix BM312 - (Internal) unit & not defined in the unit table

SAP Error Message - Details

• Message type: E = Error

• Message class: BM - Development class BZME - units of measure

• Message number: 312

• Message text: (Internal) unit & not defined in the unit table

What causes this issue?

No unit is maintained with the key &V1&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please maintain the appropriate unit with the
<DS:TRAN.OMSC>Measurement unit maintenance transaction</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BM312 - (Internal) unit & not defined in the unit table ?

  The SAP error message BM312 ("Internal unit & not defined in the unit table") typically indicates that the system has encountered a unit of measure (UoM) that is not defined in the unit of measure table. This can occur in various contexts, such as during material master creation, goods movements, or when processing transactions that involve units of measure.
  Cause:
  
  Undefined Unit of Measure: The unit of measure being referenced in the transaction or process is not defined in the SAP system's unit of measure table (T006).
  Incorrect Configuration: There may be a configuration issue where the unit of measure is not properly set up in the relevant customizing settings.
  Data Entry Error: A typo or incorrect entry in the unit of measure field can lead to this error.
  Missing Custom Units: If custom units of measure have been created but not properly defined in the system, this error can occur.
  
  Solution:
  
  
  Check Unit of Measure Table: 
  
  Go to transaction code T006 to check the unit of measure table. Verify if the unit of measure in question is listed there.
  If it is not present, you will need to create it.
  
  
  
  Create or Modify Unit of Measure:
  
  If the unit of measure is missing, you can create it using transaction code CUNI (Unit of Measure Conversion) or directly in the unit of measure table.
  Ensure that you provide all necessary details, such as the unit of measure code, description, and any conversion factors if applicable.
  
  
  
  Check Configuration:
  
  Review the configuration settings related to units of measure in the relevant modules (e.g., Materials Management, Sales and Distribution).
  Ensure that the unit of measure is correctly assigned to the relevant material types or transaction types.
  
  
  
  Data Entry Validation:
  
  Double-check the data entry for any typos or incorrect values in the unit of measure field.
  Ensure that the unit of measure being used is appropriate for the context of the transaction.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help resources for additional guidance on units of measure and their configuration.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  T006: Display Unit of Measure
  CUNI: Maintain Units of Measure
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to create or modify units of measure in the system.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or functional team for further investigation.