How To Fix MAHD209 - Conflict with base unit of measure for material &1 (R/3 = &2, BW = &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: MAHD - Messages for Alternative Historical Data

• Message number: 209

• Message text: Conflict with base unit of measure for material &1 (R/3 = &2, BW = &3)

What causes this issue?

For <DS:GLOS.3526BF19AFAB52B9E10000009B38F974>material</> &SYST-MSGV1&,
the base unit of measure &SYST-MSGV2& is used in SAP R/3. When loading
<DS:GLOS.70086ED0D946154EBC7C6B32697A9C30>alternative historical data</>
(AHD) from SAP BW, however, the unit of measure &SYST-MSGV3& was
returned.
The query must always return the AHD in the base unit of measure used
for a material in SAP R/3.

System Response

Due to this conflict, the AHD could not be transferred from SAP BW.

How to fix this error?

INCLUDE ISR_BERECHTIGUNG

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MAHD209 - Conflict with base unit of measure for material &1 (R/3 = &2, BW = &3) ?

  The SAP error message MAHD209 indicates a conflict between the base unit of measure for a material in the R/3 system and the base unit of measure in the BW (Business Warehouse) system. This error typically arises during data extraction or loading processes when the units of measure do not match between the two systems.
  Cause:
  
  Mismatch in Base Units of Measure: The base unit of measure defined for a material in the R/3 system is different from the one defined in the BW system.
  Data Transfer Issues: During the data transfer process, the system may not be able to reconcile the units of measure, leading to this conflict.
  Configuration Errors: Incorrect configuration settings in either the R/3 or BW system can lead to discrepancies in how units of measure are defined or interpreted.
  
  Solution:
  
  
  Check Base Unit of Measure:
  
  Go to the material master in the R/3 system (transaction code MM03) and check the base unit of measure for the material in question.
  Compare it with the base unit of measure defined in the BW system.
  
  
  
  Update the Base Unit of Measure:
  
  If there is a discrepancy, you may need to update the base unit of measure in either the R/3 or BW system to ensure they match.
  If the base unit of measure in BW is incorrect, you may need to adjust it to align with the R/3 system.
  
  
  
  Data Transfer Configuration:
  
  Review the data transfer configuration settings in both systems to ensure that they are set up correctly to handle units of measure.
  Check the extraction and loading processes to ensure that they are correctly mapping the units of measure.
  
  
  
  Reprocess the Data:
  
  After making the necessary adjustments, reprocess the data extraction or loading to see if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to this error for additional troubleshooting steps or specific guidance.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), RSA1 (BW Administrator Workbench), and other relevant transaction codes for data extraction and loading.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide additional context on handling unit of measure conflicts.
  User Roles: Ensure that users have the appropriate roles and authorizations to make changes to material master data in both systems.
  
  By following these steps, you should be able to resolve the MAHD209 error and ensure consistency in the base unit of measure for materials across your SAP systems.