How To Fix WU548 - The purchasing unit is different to that in the reference plant

SAP Error Message - Details

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 548

• Message text: The purchasing unit is different to that in the reference plant

What causes this issue?

A purchasing unit that differs from the purchasing unit of the
reference plant was found for plant &V4&, material &V2& in unit of
measure &V3&.

System Response

Price activation at plant group level may lead to incorrect results for
plant group &V1&.

How to fix this error?

You can activate prices at plant level by changing the price activation
type for plant group &V1&. To do this, change the price activation type
indicator to "Plant" in the plant group overview.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WU548 - The purchasing unit is different to that in the reference plant ?

  The SAP error message WU548 indicates that there is a discrepancy between the purchasing unit defined in the material master for a specific plant and the purchasing unit specified in the reference plant. This error typically arises during the creation or modification of purchasing documents, such as purchase orders or purchase requisitions.
  Cause:
  
  Different Purchasing Units: The purchasing unit defined in the material master for the reference plant does not match the purchasing unit defined for the target plant.
  Material Master Configuration: The material master data may not be consistent across different plants, leading to mismatches in purchasing units.
  Plant-Specific Data: Each plant can have its own purchasing unit for the same material, and if these are not aligned, the error will occur.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the purchasing data for both the reference plant and the target plant.
  Ensure that the purchasing units are consistent across the relevant plants.
  
  
  
  Adjust Purchasing Units:
  
  If the purchasing units are different and should be the same, you can change the purchasing unit in the material master for the target plant (transaction code MM02).
  If the purchasing unit in the reference plant is correct, you may need to update the purchasing unit in the target plant to match.
  
  
  
  Review Purchase Order/Document:
  
  If you are creating a purchase order, ensure that the purchasing unit specified in the order matches the purchasing unit defined in the material master for the relevant plant.
  
  
  
  Consult with Stakeholders:
  
  If there are business reasons for the differences in purchasing units, consult with relevant stakeholders (e.g., procurement, inventory management) to determine the appropriate purchasing unit to use.
  
  
  
  Data Consistency Check:
  
  Perform a consistency check on the material master data across different plants to identify any other discrepancies that may need to be addressed.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM03: Display Material
  MM02: Change Material
  ME21N: Create Purchase Order
  ME51N: Create Purchase Requisition
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message or provide additional guidance.
  
  
  Documentation: Review SAP documentation or help files related to material management and purchasing processes for further insights into managing purchasing units.
  
  
  By following these steps, you should be able to resolve the WU548 error and ensure that your purchasing units are correctly aligned across the relevant plants.