How To Fix WU191 - Enter a valid supplier

SAP Error Message - Details

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 191

• Message text: Enter a valid supplier

What causes this issue?

The vendor entered does not supply the material given in the
notification.

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?

Use the possible entries to select a vendor.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WU191 - Enter a valid supplier ?

  The SAP error message WU191, which states "Enter a valid supplier," typically occurs in the context of procurement or vendor management within the SAP system. This error indicates that the system cannot find a valid supplier based on the input provided. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Invalid Supplier Number: The supplier number entered may not exist in the system or may have been entered incorrectly (e.g., typos, incorrect format).
  Inactive Supplier: The supplier may be inactive or blocked in the system, preventing transactions from being processed.
  Missing Master Data: The supplier master data may not be fully maintained, leading to the inability to recognize the supplier.
  Authorization Issues: The user may not have the necessary permissions to view or select the supplier.
  Data Synchronization Issues: If the supplier data is maintained in a different system (e.g., a legacy system), there may be synchronization issues.
  
  Solutions:
  
  Verify Supplier Number: Double-check the supplier number for accuracy. Ensure that it is entered correctly and matches the format expected by the system.
  Check Supplier Status: Use transaction codes like MK03 (Display Vendor) to check if the supplier is active. If the supplier is inactive, you may need to reactivate it or select a different supplier.
  Maintain Supplier Master Data: Ensure that all necessary information for the supplier is complete and up to date. This includes address, payment terms, and other relevant details.
  Review User Authorizations: Check if the user has the necessary authorizations to access supplier data. If not, contact your SAP security administrator to grant the required permissions.
  Consult with IT Support: If the issue persists, it may be necessary to consult with your IT support team to investigate any potential data synchronization issues or system errors.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MK01 (Create Vendor), MK02 (Change Vendor), and MK03 (Display Vendor) for managing supplier data.
  SAP Notes: Check SAP Notes for any known issues or patches related to supplier management that may address this error.
  Documentation: Refer to SAP documentation or user manuals for guidance on managing suppliers and understanding the procurement process.
  
  By following these steps, you should be able to resolve the WU191 error and successfully enter a valid supplier in the SAP system.