How To Fix W5120 - Enter a vendor

W5120 - Overview

• Message type: E = Error

• Message class: W5 - Messages for MM-WEB Applications and BAPIs

• Message number: 120

• Message text: Enter a vendor

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message W5120 - Enter a vendor ?

  SAP Error Message:
  W5120 - Enter a vendor
  
  
  Cause:
  The message W5120 "Enter a vendor" appears when a vendor number is required in a transaction or screen, but the field is left empty or the system cannot find a valid vendor entry. This typically happens in purchasing or invoice-related transactions where the vendor must be specified to proceed.
  
  When does it occur?
  
  During creation or processing of purchase orders, goods receipts, or invoice documents.
  When the vendor field is mandatory but not filled.
  When the system expects a vendor number for validation or further processing.
  
  
  
  Solution:
  
  
  Enter a valid vendor number:
  Make sure to input a correct and existing vendor number in the vendor field.
  
  
  Check vendor master data:
  If you are unsure about the vendor number, use the search help (F4) to find the correct vendor or verify the vendor master data in transaction XK03 (Display Vendor).
  
  
  Ensure vendor is active:
  The vendor must be active in the system (not blocked or deleted).
  
  
  Check