How To Fix WY109 - Contact person & already exists for supplier &

WY109 - Overview

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 109

• Message text: Contact person & already exists for supplier &

What causes this issue?

Contact persons are identified system-internally by a unique
number. You wished to assign a number which is already used by the
system to a new contact person.

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?

Try again with another number.

Error message extract from SAP system. Copyright SAP SE.

WY109 - Details

• The SAP error message WY109: "Contact person & already exists for supplier &" occurs when you try to create or assign a contact person to a supplier, but the contact person already exists for that supplier in the system.
  
  
  Cause:
  
  You are attempting to add a contact person to a supplier master record.
  The contact person (identified by a contact person number or name) is already assigned to the same supplier.
  SAP prevents duplicate contact person entries for the same supplier to maintain data integrity.
  
  
  Explanation:
  
  In SAP, each supplier can have multiple contact persons.
  Each contact person must be unique per supplier.
  If you try to create a new contact person with the same identifier or details that already exist for that supplier, the system throws this error.
  
  
  
  Solution:
  
  
  Check Existing Contact Persons:
  
  Go to the supplier master data (transaction code XK03 or MK03).
  Navigate to the contact persons tab.
  Verify if the contact person you are trying to add already exists.
  
  
  
  Use