How To Fix M2296 - The units from the source and reference fields are not compatible

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 296

• Message text: The units from the source and reference fields are not compatible

What causes this issue?

The designated source field has the unit &V1& (&V2&), the reference
field has the unit &V3& (&V4&). The unit &V2& cannot be converted into
the unit &V4&.

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?

Possible conversions are located in table TMC6U.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2296 - The units from the source and reference fields are not compatible ?

  The SAP error message M2296, which states "The units from the source and reference fields are not compatible," typically occurs in the context of materials management, particularly when dealing with inventory management, purchasing, or production planning. This error indicates that there is a mismatch between the units of measure (UoM) used in the source field (e.g., the quantity being entered) and the reference field (e.g., the quantity expected by the system).
  Causes:
  
  
  Unit of Measure Mismatch: The most common cause is that the unit of measure for the material being processed does not match the unit of measure expected by the system. For example, if you are trying to enter a quantity in kilograms but the system expects it in grams, this error will occur.
  
  
  Incorrect Material Master Data: The material master data may have incorrect or inconsistent unit of measure settings. This can happen if the base unit of measure is not properly defined or if alternative units of measure are not set up correctly.
  
  
  Configuration Issues: There may be configuration issues in the SAP system related to the units of measure settings in the material management module.
  
  
  Conversion Factors: If there are conversion factors defined between different units of measure, they may not be set up correctly, leading to incompatibility.
  
  
  Solutions:
  
  
  Check Units of Measure: Verify the units of measure for both the source and reference fields. Ensure that they are compatible. You can do this by checking the material master data (transaction code MM03) and looking at the "Units of Measure" tab.
  
  
  Review Material Master Data: Ensure that the material master data is correctly configured. Check the base unit of measure and any alternative units of measure. Make sure that the conversion factors are correctly defined.
  
  
  Adjust Input Values: If you are entering data manually, ensure that you are using the correct unit of measure as expected by the system. Convert the quantity to the expected unit if necessary.
  
  
  Consult Configuration Settings: If you have access to the configuration settings, review the settings related to units of measure in the material management module. Ensure that they are set up correctly.
  
  
  Check for User Exits or BAdIs: If there are any custom developments (user exits or BAdIs) that might affect the processing of units of measure, review them to ensure they are not causing the issue.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They can provide more detailed insights based on your specific configuration and usage.
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), and MM01 (Create Material) can be used to check and modify material master data.
  Unit of Measure Configuration: The configuration for units of measure can be found in the SPRO transaction under "Logistics - General" > "Material Master" > "Basic Settings" > "Define Units of Measure."
  Documentation: SAP Help Portal and SAP Notes can provide additional information and troubleshooting steps related to this error message.
  
  By following these steps, you should be able to identify and resolve the issue causing the M2296 error in SAP.