PowerApps - Create a session picker -> calendar add with max 3 attendees

[Marone]

Hi Everyone,

I hope someone can help me with the following struggles that I have.

So I am trying to create an automated PowerApps for our ''1 to 2 sessions''

A small app where max 3 employees per session can choose an option and press a button to add to my calendar and theirs.

So the tricky part is that I need 3 people(attendees) to add the same Teams meeting link to there and my outlook calendar separately. 

As you can see in Picture 1 I'm trying things out (BTW I am not an experienced user) by creating a gallery that pulls information out of a SharePoint list that I created see Picture 2.

In the SharePoint list, I created 9 sessions over the year and I was thinking to add a static Teams meeting(URL) in their too(under the list tab ''Teams'') see Picture 2.  So if one of my employees chooses a session to attend, he/she needs to be added to the ''seats'' tab in the SharePoint list(Picture 2). After 3 seats being filled then those sessions need to disappear on the main page session calendar, see Picture 1.

I wanted also to have a confirmation page (Picture 3) with the actual button integrated over there. 

In Picture 4 you will see the ''OnSelect'' code that I have now.

It does definitely not do what I describe here but I am getting somewhere 📷.

I hope that someone can help me out with this. 

    Office365Outlook.V4CalendarPostItem(
    LookUp(Office365Outlook.CalendarGetTables().value, DisplayName = "Agenda").Name, 
    "Test",
    DateAdd(Now(), TimeZoneOffset(), Minutes),
    DateAdd(Now() , 60 + TimeZoneOffset(), Minutes),


      "(UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna",
    {body:"Test text 
________________________________________________________________________________ 
" & BrowseGallery1.Selected.Teams, IsHtml:true}

    )

Again, not a professional 😀 , and in advance thank you for the reactions and effort. 

Picture 1:

Picture 2:

Picture 3:

Picture 4:

[Marone]

No one 😓