Sharing access to the data in the Common Data Service. The users need permission to access the entities the app uses. To grant them access, you will need to:
1. Create a security role
2. Assign users to the security role
Note: Common Data Service for Apps has a powerful enterprise grade security model that allows you to group users in security roles and give those roles varying levels of access to entities that some of our most sophisticated business apps are built on.
Reference:
https://powerapps.microsoft.com/en-us/blog/sharing-a-canvas-app-built-on-top-of-common-data-service/ D18912E1457D5D1DDCBD40AB3BF70D5D