Hi Sherihan -
Right now, the Inbox is not a feature included in Canvas Parent. Since it's initial launch, the Inbox (including vs excluding) has been part of discussions.
I have some good news to share, though!
In the Mobile Update - Summer 2019!ā, it was shared that Canvas Parent 3.1 will include:
3.1: Messaging. The parent app is getting an inbox! Parents will be able to send and receive messages from the app, and message composition will be contextual. Parents will be able to compose a message from the assignment detail view, for example, and weāll add the appropriate teacher(s) as recipients automatically. Weāll also include a link to the content being referenced in the text of the message so teachers have a little more context on the receiving end. (Yes, the parent app will use the existing Canvas Inbox to make this happen.)
Awesome updates are in store. We just need to be patient. 
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