How To Fix M8845 - Conversion of unit of measure & to & for mat. & & not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 845

• Message text: Conversion of unit of measure & to & for mat. & & not possible

What causes this issue?

It was not possible to convert various units of measure in the period
records into the current unit of measure for the material.

How to fix this error?

Check the entries in table T006 and the alternative unit of measure in
the material master record. If this does not help, inform your systems
administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8845 - Conversion of unit of measure & to & for mat. & & not possible ?

  The SAP error message M8845 indicates that there is an issue with the conversion of a unit of measure (UoM) for a specific material. This error typically arises when the system is unable to convert the specified unit of measure to the desired unit for a material in a transaction, such as during goods movement, inventory management, or when creating purchase orders.
  Causes:
  
  Missing Conversion Factors: The conversion factors between the two units of measure may not be defined in the system.
  Incorrect Unit of Measure: The unit of measure being used may not be valid for the material in question.
  Material Master Data Issues: The material master data may not be set up correctly, particularly in the Units of Measure view.
  Inconsistent UoM Settings: There may be inconsistencies in the unit of measure settings across different documents or transactions.
  Unit of Measure Group Issues: The unit of measure group assigned to the material may not include the required units.
  
  Solutions:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the Units of Measure view.
  Ensure that the required units of measure are defined and that conversion factors are set up correctly.
  
  
  
  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.
  
  
  
  Validate Unit of Measure Group:
  
  Check the unit of measure group assigned to the material. Ensure that it includes both the source and target units of measure.
  If necessary, modify the unit of measure group to include the required units.
  
  
  
  Review Transaction Data:
  
  If the error occurs during a specific transaction, review the data entered in that transaction for any discrepancies in the units of measure.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on unit of measure configuration and troubleshooting.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Unit of Measure Configuration: Understanding how units of measure are configured in SAP is crucial. This includes knowing how to set up unit of measure groups and conversion factors.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MM02 (Change Material), and MM01 (Create Material) for managing material master data.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide specific fixes or patches.
  
  By following these steps, you should be able to identify and resolve the issue causing the M8845 error in SAP.