Retrieve all Teams transcripts a bot has attended to using Graph API

Hi there,

I've been struggling for a lot of time trying to get this done. Has anyone been able to achieve something like this ?

I wanted to :

1- Get all the meetings and transcripts of the tenant

2- Filter on those where the bot was attending

3- Get the transcripts when available.

4- Add rules to restrict the bot's access

Right now I am stuck with the OAuth :

The application 'bot-transcript' asked for scope 'OnlineMeetings.Read.All' that doesn't exist on the resource '00000003-0000-0000-c000-000000000000'. 

But this permission was added, and really seems to exist. Right ?

Thanks in advance for any kind of help you could give me.