Output Argument Null

[Gokul_Jayakumar (Gokul Jai)]

Hi @db64a40e754add3bd2df0ad39
Use in/Out as an argument type to receive data from the previous flow.

And message box can automatically close by using the properties of AutomaticallyCloseAfter. It will close the message box after a specific duration.
Otherwise uses write a line or Log message activity.