How to resolve the error -Empty return for method ‘Logon’ of service ‘xtk:session’ for Message Centre technical workflow

Description

Title: How to resolve the error -Empty return for method ‘Logon’ of service ‘xtk: session’ for Message Centre technical workflows failed due to scheduled server restart time

Objective
Avoid the message center syncing workflows(Message Center execution instance 1 (mcSynch_mcExec1)) keep failing with the error  “Empty return for method ‘Logon’ of service ‘xtk: session’” at marking instance.
This error is because the RT server is starting at the same time, which caused the issue since marketing would not be able to connect to RT.

Resolution

Environment
Adobe Campaign Classic

Steps
Steps to fix the issue:

1- Verify the Technical workflow’s logs to see the time error occurs.
2- If the time for the error and server restart is the same , modify the scheduler of the Marketing side workflows(mcSynch_mcExec) to change the start time to 5 or 10 minutes after server restart

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