How To Fix WU535 - A different supplier category (internal/external) assigned in ref. plant

WU535 - Overview

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 535

• Message text: A different supplier category (internal/external) assigned in ref. plant

What causes this issue?

A vendor category (internal/external vendor) that differs from the
vendor category 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 of 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.

WU535 - Details

• The SAP error message WU535 indicates that there is a mismatch in the supplier category (internal or external) assigned in the reference plant for a particular supplier. This error typically arises during the procurement process when trying to create or modify a purchasing document, such as a purchase order or a purchase requisition.
  
  Cause:
  The error occurs due to the following reasons:
  
  Supplier Category Mismatch: The supplier you are trying to use is categorized differently in the reference plant compared to what is expected in the current context (e.g., internal vs. external).
  
  Configuration Issues: There may be inconsistencies in the configuration of the supplier master data or the plant settings in the SAP system.
  Data Entry Errors: Incorrect data entry while creating or modifying the supplier or plant settings can lead to this error.
  
  
  Solution:
  To resolve the WU535 error, you can take the following steps:
  
  
  Check Supplier Master Data:
  
  Go to the supplier master data (transaction code MK03