How To Fix WY155 - Partner function &1 is not available at level &3 in schema &2

WY155 - Overview

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 155

• Message text: Partner function &1 is not available at level &3 in schema &2

What causes this issue?

Partner function &V1& is assigned to your vendor at level &V3&. Partner
schema &V2& is valid at level &V3& in the new account group &V4& you
selected. Partner function &V1& is not defined in this partner schema.
By changing the account group, partner functions were assigned to your
vendor which are not allowed.

System Response

A change to the account group is not allowed.

How to fix this error?

Please change the partner schemas for the account groups in
Customizing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY155 - Partner function &1 is not available at level &3 in schema &2 ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Error Message:
  WY155 Partner function &1 is not available at level &3 in schema &2
  
  Meaning / 
  Cause:
  This error occurs during the processing of partner determination in SAP (e.g., in Sales and Distribution (SD), Materials Management (MM), or other modules where partner determination schemas are used). The system is trying to find or assign a partner function (e.g., sold-to party, ship-to party, payer, etc.) at a certain partner determination level within a partner determination procedure (schema), but the partner function is not defined or allowed at that level.
  
  &1 = Partner function (e.g., AG - Sold-to party, WE - Ship-to party)
  &2 = Partner determination procedure/schema (e.g., VPRS, VPRS01)
  &3 = Partner determination level (e.g., header, item)
  
  In other words, the partner function you are trying to assign or use is not configured for the specified level in the partner determination procedure.
  
  Typical Scenarios:
  
  You are creating or