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At the moment, if a canvas app has been shared with external users, those users can't use the embedded app inside D365HR client. They can only access the app directly inside Power Apps.

This scenario is described in the document: https://docs.microsoft.com/en-us/dynamics365/fin-ops-core/fin-ops/get-started/embed-power-apps#sharing-an-embedded-app

It is necessary to allow external users to use shared embedded app in D365 Human Resources.

Business scenario: There are a lot of canvas apps that are shared with many users from different tenant. Those users need to be able to access the embedded app inside D365HR client.
Category: Integrations
STATUS DETAILS
Declined
Ideas Administrator

Thank you for your suggestion. After careful consideration, we’ve decided not to proceed with this functionality at this time.After careful consideration, we’ve decided not to proceed with this functionality at this time. This posting is provided “as is” with no warranties, and confers no rights.