Hi Mendix Test022, 

It is possible to debug the microflow when you connect the microflow to a button.

Another way to debug the after startup microflow is to add log messages in the microflow.

Cheers,

Jeffrey

Hello,

Please check this link,

https://medium.com/mendix/a-real-after-startup-microflow-in-mendix-mendix-and-me-4feb4fe0a98#:~:text=The%20Debugger,usually%20not%20available%20immediately%20afterwards.

Hope it will works for you.