How To Fix WAHD209 - Conflict with base unit of measure for material &1 (ECC = &2, BW = &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: WAHD - Messages for Alternative Historical Data

• Message number: 209

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

What causes this issue?

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

System Response

Because of this conflict, the system was unable to transfer the AHD 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 WAHD209 - Conflict with base unit of measure for material &1 (ECC = &2, BW = &3) ?

  The SAP error message WAHD209 indicates a conflict between the base unit of measure for a material in the ECC (ERP Central Component) system and the BW (Business Warehouse) system. This typically occurs when there is a mismatch in the unit of measure definitions between the two systems, which can lead to issues in data consistency and reporting.
  Cause:
  
  Unit of Measure Mismatch: The base unit of measure for a material in the ECC system does not match the unit of measure defined for the same material in the BW system.
  Data Transfer Issues: During data extraction or transfer from ECC to BW, the unit of measure may not have been correctly mapped or updated.
  Configuration Errors: There may be configuration issues in either the ECC or BW system that lead to discrepancies in how units of measure are defined or interpreted.
  
  Solution:
  
  
  Check Unit of Measure Settings:
  
  In the ECC system, navigate to the material master data and verify the base unit of measure for the affected material.
  In the BW system, check the corresponding unit of measure settings for the same material.
  
  
  
  Synchronize Units of Measure:
  
  Ensure that the base unit of measure in ECC matches the one in BW. If there are discrepancies, update the unit of measure in one of the systems to ensure consistency.
  
  
  
  Data Transfer Configuration:
  
  Review the data transfer settings between ECC and BW. Ensure that the extraction and transformation processes correctly handle units of measure.
  If necessary, adjust the data flow or mappings to ensure that the correct units are being transferred.
  
  
  
  Re-extract Data:
  
  After making the necessary adjustments, re-extract the data from ECC to BW to ensure that the changes take effect.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to unit of measure handling in both ECC and BW for additional guidance.
  
  
  
  Related Information:
  
  Material Master Data: The material master in SAP contains all the information related to a material, including its units of measure.
  Unit of Measure Configuration: Units of measure can be configured in the SAP system, and it is important to ensure that they are consistent across different modules and systems.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional solutions related to this error message.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or consult with a technical expert familiar with both ECC and BW systems.