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Book A Room: Office365.CalendarGetTables return empty list

I'm developing a simple Power App based on the Book A Room sample App. 

dsfs when I confirm the booking some users get the error that "V2CalendarPostItem" is called with the wrong attribute for the "table"-parameter. 

dfI found out, that on the startup on my App the declaration of the Variable "MyCalendar" does not work for some users, because the function "Office365.CalendarGetTables" returns an empty list. 


Does anyone know, how or why this could happen and how I could debug it? The users definitely have at least one calendar item, so at least one should be sent to the PowerApp...


Thanks in Advance!

Community Support
Community Support

Re: Book A Room: Office365.CalendarGetTables return empty list

Hi @luke1110 ,

The CalendarGetTables function has been DEPRECATED.

Please change to use CalendarGetTables_V2 function.

Here's a doc about office365 outlook connector for your reference:





Best regards,

Community Support Team _ Phoebe Liu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Regular Visitor

Re: Book A Room: Office365.CalendarGetTables return empty list

Thank you for your reply! 


Unfortunately the "CalendarGetTables_V2" function does not exist for my current Outlook Data connections. But if I add a new connection to Office365Outlook I can use "CalendarGetTablesV2", which is not documented as far as I can see it!

The only documentation reference to a function of that type is the "CalendarGetTables_V2" that you suggested, which does not exist for my case and I can't understand why. 


But nevermind that, if I use the proposed "CalendarGetTablesV2", I get a List of calendars, of which the name and id values are empty. So I can't really use it, to book a new appointment. 


So I have two more questions:

- How can I update my office365 endpoints so that I can use the documented functions?

- How can I find out what kind of values "CalendarGetTablesV2" returns? Do you know where the documentation of that function is?


Thanks in advance. 

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