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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY109 - Contact person & already exists for supplier & ?

  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 Existing Contact Person:
  
  If the contact person exists, use the existing contact person record instead of creating a new one.
  
  
  
  Create a New Contact Person with Different Details:
  
  If you need to add a new contact person, ensure the details (name, contact person number) are unique and not already assigned to the supplier.
  
  
  
  Check for Data Entry Errors:
  
  Sometimes, the error can be caused by a typo or incorrect data entry.
  Verify the contact person details carefully.
  
  
  
  If Needed, Delete or Update Existing Contact Person:
  
  If the existing contact person record is incorrect or obsolete, consider updating or deleting it before adding a new one.
  
  
  
  
  Related Information:
  
  Transaction Codes:
  
  XK01 - Create Supplier (Centrally)
  XK02 - Change Supplier
  XK03 - Display Supplier
  MK01/MK02/MK03 - Vendor Master for Purchasing Organization
  
  
  Tables:
  
  LFA1 - Vendor Master (General Section)
  LFB1 - Vendor Master (Company Code)
  LFM1 - Vendor Master (Purchasing Organization)
  ADR6 - E-mail Addresses (if contact person details include communication info)
  
  
  Notes:
  
  Ensure that the contact person numbering or identification scheme is consistent.
  Contact persons are often maintained in the Business Partner (BP) master in newer SAP systems (S/4HANA).
  
  
  
  
  If you continue to face issues, check for any custom validations or user-exits that might be enforcing additional rules on contact person creation.
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WY109: Contact person already exists for supplier
  
  
  Cause
  Duplicate contact person entry for the same supplier
  
  
  Solution
  Use existing contact person or create a unique one
  
  
  Check
  Supplier master contact persons (XK03/MK03)
  
  
  
  
  If you need further help, please provide the exact steps or transaction where the error occurs.