Zoho Creator Tutorial Series: Vacation Requests

Zoho Creator Tutorial Series: Vacation Requests

Hi,

I'm working on the tutorial you made (well done by the way!): 
https://www.youtube.com/playlist?list=PLlC7sQNISSUQb2ikBRmlMRWNtbRpvNKX3

and I'm having problems with the custom actions. 

When I want to send an automatic email notification and when the request has been accepted or rejected, it works if I "edit" the Vacation Requests Report, but if I just want to click on the custom buttons (Approve, Reject) it doesn't work, the notification will not be sent. 

Do you know what I can do to avoid this problem?
I really would like to use the function from the Custom button and not only from the edit mode.

Thank for your help,

Best,

A.C