How To Fix SDEST186 - Obligatory parameter "LOGON_USER" must not be empty

SDEST186 - Overview

• Message type: E = Error

• Message class: SDEST - Messages for RFC Destinations

• Message number: 186

• Message text: Obligatory parameter "LOGON_USER" must not be empty

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDEST186 - Obligatory parameter "LOGON_USER" must not be empty ?

  The SAP error message SDEST186 indicates that the obligatory parameter "LOGON_USER" must not be empty. This error typically occurs in scenarios where a user is trying to execute a function or transaction that requires a user logon but the system does not have the necessary user information.
  
  Cause:
  
  Missing User Information: The most common cause of this error is that the system is attempting to execute a process that requires a user logon, but the user information has not been provided or is missing.
  
  Configuration Issues: There may be issues in the configuration of the system or the specific transaction that is being executed, leading to the absence of the required user parameter.
  Programmatic Errors: If the error occurs in a custom program or report, it may be due to a coding error where the user logon information is not being passed correctly.
  
  
  Solution:
  
  Check User Logon: Ensure that the user is logged into the SAP