How To Fix ME748 - Supplier is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 748

• Message text: Supplier is not unique

What causes this issue?

During automatic generation of a purchase order, the system found
several suppliers. The purchase order header only permits one supplier.

System Response

Processing is canceled.

How to fix this error?

If you work with transaction MIGO, enter only one supplier.
If you want to collect IDocs, make sure that the suppliers are the same.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ME748 - Supplier is not unique ?

  The SAP error message ME748 ("Supplier is not unique") typically occurs when you are trying to create or process a purchase order or a related document, and the system finds multiple suppliers that match the criteria you have entered. This can happen in various scenarios, such as when you are using a vendor number that is not unique or when there are multiple vendors with similar names or attributes.
  Causes:
  
  Multiple Vendor Records: There are multiple vendor records in the system that match the criteria you are using (e.g., vendor name, address, etc.).
  Vendor Master Data Issues: The vendor master data may not be properly maintained, leading to duplicates or similar entries.
  Incorrect Input: The input data (like vendor number or name) may be incorrect or incomplete, causing the system to find multiple matches.
  Purchasing Organization: The purchasing organization may not be specified correctly, leading to ambiguity in vendor selection.
  
  Solutions:
  
  
  Check Vendor Master Data:
  
  Go to the vendor master data (transaction code XK03 or MK03) and check if there are multiple entries for the supplier you are trying to use.
  Ensure that the vendor records are unique and properly maintained.
  
  
  
  Use Unique Vendor Identification:
  
  If you are using a vendor name or partial information, try to use the full vendor number or a more specific identifier to reduce ambiguity.
  
  
  
  Review Input Criteria:
  
  Double-check the input criteria you are using to create the purchase order or document. Ensure that you are entering the correct and complete information.
  
  
  
  Consult with Your SAP Administrator:
  
  If you are unable to resolve the issue, consult with your SAP administrator or support team. They can help you identify any underlying data issues or system configurations that may be causing the problem.
  
  
  
  Use Filters:
  
  If applicable, use filters in the selection screen to narrow down the list of suppliers to ensure you are selecting the correct one.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), and ME23N (Display Purchase Order).
  Vendor Master Data Maintenance: Understand how to maintain vendor master data using transaction codes like XK01 (Create Vendor) and XK02 (Change Vendor).
  SAP Notes: Check SAP Notes for any known issues or patches related to vendor management and purchasing processes.
  
  By following these steps, you should be able to resolve the ME748 error and proceed with your purchasing activities in SAP.