Adding a Database to an Existing PowerApps Environment
To add a database to an existing PowerApps environment, do the following. Log into https://admin.powerapps.com/ and go to Environments, then select the environment. You will see a Create my Database button. Click it: You will see below: Select a Currency and Language, then click Create my Database: You will see “provisioning database”: Once complete, it will look like below: Go to https://make.powerapps.com/. Select the environment, and you will see the entities installed: