Re: Chat module in Teams necessary for a PVA bot?
@Thomsch even though you install the bot as an app, users interact with it via chat, and the bot appears as another entity within the chat list, as if it were another colleague. As a result, if your organization has disabled chat in Teams, then you won't be able to utilize a PVA bot unfortunately. However, you could look at hosting it on channels outside of Teams, such as a custom website, etc.
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Cheers,
Matt