# Connect using AD Application credentials
**Step I:**
1. Login to Microsoft azure portal.
2. Search App registrations, and create New registration.
3. Give a name and leave default register.\
4. Create secret. \
5. Give following API Permission with Grant admin consent. 
6. Create App roles with Task Read value.\
**Step II:**
Create database user from external (AD Application) in master database.\
**Query**
CREATE USER \ FROM EXTERNAL PROVIDER;
**Step III:**
Switch to the database and add user to database role (db\_datareader), grant view definition privilege.\
**Query**
ALTER ROLE db\_datareader ADD MEMBER \[\];
GRANT VIEW DEFINITION TO \[\];
**Required Parameters:**
* Server name (example : testdb.database.windows.net)
* Database name
* App client id
* App tenant id
* App client secret
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