We are requesting a new feature that allows external (unmanaged) users to be invited into Box Apps.

Use Case Example:
A law firm wants to share categorized legal documents with their clients through Box. Currently, Box Apps enable internal users to view and manage files with rich metadata, making it easy to organize and automate workflows. However, clients cannot access these metadata views directly. Customers should have the ability to view this structure and even work with it to launch automations and processes, as well as search their documents more easily.