How To Fix WY121 - Partner schema & not allowed for supplier master

SAP Error Message - Details

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 121

• Message text: Partner schema & not allowed for supplier master

What causes this issue?

You want to use partner schema which has already been created for
another area (e.g. document, customer master).

System Response

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

How to fix this error?

Please choose a different partner schema. Use the Possible entries
button to display the possible entries.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY121 - Partner schema & not allowed for supplier master ?

  SAP Error Message:
  
  WY121 - Partner schema & not allowed for supplier master
  
  Cause:
  This error occurs when you try to assign or use a partner schema that is not allowed or not defined for the supplier master data in the system. Partner schemas control which partner functions (like contact person, ordering address, invoicing party, etc.) are valid and how they are processed in master data or transactions.
  In this case, the partner schema you are trying to use is either:
  
  Not assigned to the supplier master data,
  Not maintained in the system for vendor master,
  Or the partner function within the schema is not valid for suppliers.
  
  
  Explanation:
  
  Partner schemas are used in SAP to define partner functions and their relationships in master data and documents.
  For vendor (supplier) master data, only certain partner schemas are allowed.
  If you try to assign or use a partner schema that is meant for customers or other business partners, or one that is not configured for vendors, SAP throws this error.
  
  
  Solution:
  
  
  Check Partner Schema Assignment:
  
  Go to transaction SPRO ? Logistics General ? Business Partner ? Partner Schema ? Define Partner Schema.
  Verify if the partner schema you are trying to use is defined and allowed for vendor master data.
  
  
  
  Assign Correct Partner Schema:
  
  In vendor master data configuration, ensure that the partner schema assigned is valid for suppliers.
  You can check or assign partner schemas in the customizing path:
  
  SPRO ? Materials Management ? Purchasing ? Vendor Master ? Partner Schema
  
  
  Assign the correct partner schema to the vendor account group or vendor master data.
  
  
  
  Check Partner Functions:
  
  Verify that the partner functions within the schema are valid for vendor master.
  Remove or correct any invalid partner functions.
  
  
  
  Use Correct Transaction:
  
  Ensure you are using the correct transaction or process for vendor master maintenance that supports the partner schema.
  
  
  
  Consult with SAP Basis/Functional Team:
  
  If the partner schema is custom, check with your SAP functional team to confirm the correct configuration.
  Sometimes, partner schemas are client-specific or customized and may need adjustment.
  
  
  
  
  Related Information:
  
  Partner Schema: Defines the partner functions and their relationships in master data and documents.
  Vendor Master Data: Contains information about suppliers/vendors.
  Partner Functions: Roles assigned to business partners (e.g., ordering address, invoicing party).
  Transactions: Vendor master data is maintained via transactions like XK01, XK02, XK03, or via Business Partner (BP) transaction in newer SAP versions.
  
  
  Summary:
  
  Cause: Using a partner schema not allowed for vendor master.
  Solution: Assign or use a partner schema valid for vendor master data in customizing.
  Check: Partner schema definitions, partner functions, and vendor master configuration.
  
  
  If you provide the exact partner schema name or the transaction you are using, I can help you with more specific steps.