How To Fix WY127 - International location number &1 &2 &3 is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 127

• Message text: International location number &1 &2 &3 is not unique

What causes this issue?

There are at least two vendor master records for international location
number &V1& &V2& &V3&.

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 check your international location number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY127 - International location number &1 &2 &3 is not unique ?

  Certainly! Here's a detailed explanation for the SAP error message WY127: International location number &1 &2 &3 is not unique:
  
  Error Message
  WY127: International location number &1 &2 &3 is not unique
  
  &1, &2, &3 are placeholders for the actual values involved in the error, typically representing the country code, location number, and possibly another identifier.
  
  
  Cause
  This error occurs when you try to create or maintain a location in SAP (usually in the Logistics or Materials Management module) and the International Location Number (ILN) you are entering already exists in the system for another location.
  
  The International Location Number (ILN) is a unique identifier for a location, often used in logistics and supply chain processes.
  SAP requires that each ILN be unique across the system to avoid confusion in location identification.
  If you attempt to assign an ILN that is already assigned to another location, SAP throws this error.
  
  
  Where it Occurs
  
  Typically encountered in transaction codes related to location management, such as:
  
  SPRO (Customizing for Logistics)
  OVX5 (Define Locations)
  Vendor or customer master data maintenance if ILN is used there
  
  
  Also can appear during data upload or master data synchronization processes.
  
  
  Solution
  
  
  Check Existing Locations:
  
  Use transaction OVX5 or the relevant location display transaction to search for the ILN in question.
  Verify if the ILN is already assigned to another location.
  
  
  
  Correct the ILN:
  
  If the ILN is duplicated, either:
  
  Change the ILN you are trying to enter to a unique number.
  Or, if the existing ILN assignment is incorrect, correct or delete the duplicate entry.
  
  
  
  
  
  Data Consistency:
  
  Ensure that the ILN is unique and correctly maintained across all relevant locations.
  If you are importing data, check the source data for duplicates before upload.
  
  
  
  Consult Master Data Governance:
  
  If your organization has a master data governance process, follow the procedure to resolve ILN conflicts.
  
  
  
  
  Additional Information
  
  International Location Number (ILN) is often used in EDI (Electronic Data Interchange) and supply chain processes to uniquely identify physical locations.
  Maintaining unique ILNs is critical for accurate shipment, delivery, and logistics tracking.
  If you are unsure about the ILN format or assignment rules, consult your organization's logistics or master data team.
  Sometimes, the ILN is linked to external standards (e.g., GS1 GLN - Global Location Number), so ensure compliance with those standards.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WY127: International location number &1 &2 &3 is not unique
  
  
  Cause
  Attempt to assign an ILN that already exists for another location
  
  
  Solution
  Check existing ILNs, ensure uniqueness, correct or change the ILN
  
  
  Transactions
  OVX5 (Define Locations), SPRO, Vendor/Customer Master Data
  
  
  Related Info
  ILN is critical for logistics, EDI, and supply chain; often linked to GS1 GLN standards
  
  
  
  
  If you need help with specific transaction steps or data cleanup, feel free to ask!