How To Fix W4255 - Warning: Test mode active - database not updated

W4255 - Overview

• Message type: E = Error

• Message class: W4 - Messages for material discontinuation

• Message number: 255

• Message text: Warning: Test mode active - database not updated

Self-Explanatory Message

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W4255 - Details

• SAP Message:
  W4255 Warning: Test mode active - database not updated
  
  
  Cause:
  This warning message appears when you execute a transaction or a program in test mode (also called simulation mode). In this mode, the system processes the logic and performs all checks but does not update the database. This is typically used to verify the results of an operation without making any actual changes to the data.
  Common scenarios where this message appears:  
  
  Running reports or transactions with a "Test Run" or "Simulation" checkbox selected.  
  Executing batch jobs or programs with test mode parameters enabled.  
  Using certain SAP tools or transactions that allow you to simulate changes before posting.
  
  
  
  Solution:
  
  If you want to update the database:
  Make sure to run the transaction or program without the test mode option enabled. For example, uncheck the "Test Run" or "Simulation" checkbox before executing.  
  If you only want to simulate:
  No action is needed; this