How To Fix VN423 - MESSAGE object (mail output) does not exist

VN423 - Overview

• Message type: E = Error

• Message class: VN - Nachrichtensteuerung

• Message number: 423

• Message text: MESSAGE object (mail output) does not exist

Self-Explanatory Message

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VN423 - Details

• The SAP error message:
  VN423 MESSAGE object (mail output) does not exist
  typically occurs in the context of output determination for purchasing documents (like purchase orders) when the system tries to find a message object for a mail output type but cannot find it.
  
  Cause
  
  The message object for the mail output type is not defined or missing in the system.
  The output type configured for the purchasing document is set to use a message object that does not exist or is incorrectly maintained.
  The output determination procedure for the purchasing document is referencing a message object that is not available in the system.
  Sometimes, this can happen if the output type is set to use a mail output but the corresponding message object (which controls the output processing) is not created or assigned.
  
  
  Explanation
  In SAP MM (Materials Management), output types (like print, fax, email) are linked to message objects that control how the output is processed. For