Doubt - Creating a follow up

[rslemer]

I still do not understand how this works

Suppose I scheduled a call for a client at 9am today

I call at the scheduled time and the client requests that I return tomorrow at 10:00 a.m.

For me, I should go on follow up, select tomorrow - 10am and click on create follow up

The system then would let me know at 10am tomorrow, with a pop up, that I have a follow up of this task.

But this is not what happens.

What is the logic of these fields?

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Which date field, system uses to show a pop reminder?