How To Fix REMPT402 - Conversion of material & to unit of measure & not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: REMPT - Message Class for REM Planning Table (Rel. 99)

• Message number: 402

• Message text: Conversion of material & to unit of measure & not possible

What causes this issue?

You want to convert a material to a unit of measure that you have not
maintained for the material.

System Response

The system cannot change the unit of measure.

How to fix this error?

Maintain the unit of measure you want for the material in the material
master record as an alternative unit of measure. (You enter the
alternative unit of measure under "Additional data --> Units of
measure".)
<DS:TRAN.MM02>Proceed with function</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message REMPT402 - Conversion of material & to unit of measure & not possible ?

  The SAP error message REMPT402 indicates that there is an issue with converting a material from one unit of measure (UoM) to another. This typically occurs in scenarios where the system is unable to perform the conversion due to various reasons related to the material master data or the configuration of units of measure.
  Causes of REMPT402
  
  
  Missing Conversion Factors: The material may not have the necessary conversion factors defined between the base unit of measure and the target unit of measure in the material master.
  
  
  Incorrect Unit of Measure Configuration: The units of measure may not be correctly configured in the system, or the conversion factors may not be set up properly.
  
  
  Material Master Data Issues: The material master data might be incomplete or incorrect, leading to issues in conversion.
  
  
  Unit of Measure Group Issues: The unit of measure group assigned to the material may not include the required units for conversion.
  
  
  Inconsistent Data: There may be inconsistencies in the data related to the material or its units of measure.
  
  
  Solutions to REMPT402
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the unit of measure settings.
  Ensure that the base unit of measure and the alternative units of measure are correctly defined.
  
  
  
  Define Conversion Factors:
  
  If conversion factors are missing, you can define them in the material master under the "Units of Measure" view.
  Ensure that the conversion factors are accurate and reflect the correct relationship between the units.
  
  
  
  Review Unit of Measure Configuration:
  
  Check the configuration of units of measure in the system (transaction code OMN3).
  Ensure that the units of measure are correctly defined and that the conversion factors are set up.
  
  
  
  Check Unit of Measure Group:
  
  Verify that the unit of measure group assigned to the material includes the units you are trying to convert between.
  
  
  
  Data Consistency Check:
  
  Perform a consistency check on the material master data to identify any discrepancies or issues.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on handling unit of measure issues.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  MM03: Display Material Master
  OMN3: Maintain Units of Measure
  MM02: Change Material Master
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to unit of measure conversions.
  
  
  User Exits and BAdIs: If custom logic is involved in the conversion process, review any user exits or BAdIs that may affect the conversion logic.
  
  
  By following these steps, you should be able to identify and resolve the cause of the REMPT402 error in SAP. If the issue persists, consider reaching out to your SAP support team for further assistance.