Setting Up Office 365 Integration 

Note: This guide is intended for the EndtoEnd Support Team or external managed Service Providers (MSPs), but accessible to anyone with Entra portal access.

Key Points: Setting Up Office 365 Integration

1. Access Entra portal
Login to the client's Microsoft account at https://entra.microsoft.com.

2. Access app registrations
On the Entra main dashboard, navigate to identity, select applications, then app registrations.

3. Access registrations
Click new registration.
 

4. Register an application
Complete details as below. The redirect URL should be in the format, where [domain] is the client's integrate domain.:

https://[domain]/General/Response_OAuth2

An extra redirect URL should be added for each subdomain that needs access to email integration. Click register.

5. Complete the new secret
On the newly created app, click certificates & secrets, then new client secret. Add a description, then set the expiration period to the longest possible (24 months), click add.

6. Copy the secret value
Copy the secret value, not the secret ID, paste somewhere safe. The correct value will always contain a ~ symbol. 

7. Copy IDs
From the overview page, copy the application (client) ID and directory (tenant) ID. 

8. Submit IDs
Within the client's integrate system, navgate to /Settings/SystemManagement/Secret. Paste the client ID, secret and Tenant ID under 365 Graph Secret. If the client has suborganisations, repeat the process for each one.

Note: MSPs please email the three value to support@endtoendit.com. 

9. Test the connection
Request the user to navigate to my profile, then mailbox, then check connection. The user will be prompted to sign in to their Microsoft account, and grant permission to the application.

10. Further guidance
Troubleshooting: Need Admin Approval and similar errors.