How to: Automatic Reminder Emails Based on 2 Factors

[Pch]

Could you try this ?

Contatenate(ThisRow.Task," - ",ThisRow.Student.Student)

In that part ThisRow.Student.Student the second .Student should get the name of the student from your list/lookup field (from its origin point)

Or maybe this :

Contatenate(ThisRow.Task," - ",ToText(ThisRow.Student))

But there might be other ways to do this too