How To Fix VN143 - This is simulation only

SAP Error Message - Details

• Message type: E = Error

• Message class: VN - Nachrichtensteuerung

• Message number: 143

• Message text: This is simulation only

Self-Explanatory Message

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• What is the cause and solution for SAP error message VN143 - This is simulation only ?

  SAP Error Message:
  
  VN143 - This is simulation only
  
  Cause:
  The message VN143 - "This is simulation only" appears during the processing of vendor invoice documents in SAP, specifically when the system is running in simulation mode (also known as test run or test mode). This mode allows users to simulate the posting of an invoice without actually updating the database or financial records.
  In other words, the system is configured to perform a test run of the invoice posting, so no real posting occurs. This is useful for verifying the correctness of the document before actual posting.
  
  When does it occur?
  
  When you execute transaction MIRO (Enter Incoming Invoice) or similar invoice posting transactions with the Test Run checkbox selected.
  During simulation runs in invoice verification or logistics invoice verification processes.
  When the system is set to simulate postings for training, testing, or validation purposes.
  
  
  Solution:
  
  
  If you want to post the invoice for real:
  
  Simply uncheck the "Test Run" checkbox in the transaction screen before saving or posting the document. This will allow the system to post the invoice to the financial accounting and update the vendor account.
  
  
  If you want to continue simulation:
  
  No action is needed; the message is informational and indicates that no real posting has taken place.
  
  
  If the message appears unexpectedly:
  
  Check if the transaction is being run with the test run flag set by default (e.g., via user parameters, variants, or custom enhancements). Remove or adjust these settings if actual posting is intended.
  
  
  
  Related Information:
  
  Transaction Codes: MIRO (Enter Incoming Invoice), MRBR (Release Blocked Invoices), MR8M (Cancel Invoice Document)
  Test Run Checkbox: Usually found on the initial screen or in the posting screen of invoice transactions.
  Purpose of Simulation: To verify the correctness of the invoice document, check for errors, and review accounting entries without affecting the live data.
  SAP Notes: Sometimes SAP Notes or OSS messages reference VN143 in the context of invoice verification test runs.
  Error vs. Message: VN143 is an informational message, not an error. It informs the user that the current operation is a simulation.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Message
  VN143 - This is simulation only
  
  
  Cause
  Invoice posting is run in test/simulation mode
  
  
  Effect
  No real posting or database update occurs
  
  
  Solution
  Uncheck "Test Run" to post the invoice for real
  
  
  Use Case
  Verify invoice correctness before actual posting
  
  
  
  
  If you want, I can also help you with the exact steps to post an invoice without simulation or how to check if the test run flag is set by default in your system.