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To integrate with Gmail, you have to create a project in the Google Cloud portal. You can find more details about creating a project here https://cloud.google.com/resource-manager/docs/creating-managing-projects?_gl=1*1etkyrs*_ga*Nzc1OTUzMzMxLjE3MjI0MTA4ODY.*_ga_WH2QY8WWF5*MTcyNDY2MjUyNi4yLjAuMTcyNDY2MjUyNi42MC4wLjA. .
Create A Project
Go to the Google Cloud portal.
Click on “Select a project”, and click on “NEW PROJECT” to create a new project.
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Paste the Client ID & Client Secret to Client-id & Client-Secret, the Client ID & Client Secret obtain from OAuth client ID here https://cloudfon.atlassian.net/wiki/spaces/CCSD/pages/edit-v2/52166920#Configure-the-App .
Copy the Authorized Redirect URL and paste to Authorized Redirect URIs here https://cloudfon.atlassian.net/wiki/spaces/CCSD/pages/edit-v2/52166920#Configure-the-App .
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That's all of the Gmail integration, now, you can connect your Gmail account to the Inbox > Channels > Email in your tenant here https://cloudfon.atlassian.net/wiki/spaces/CX/pages/49283141/3.1.1+Email#Gmail or your SMTP server here 9.2.2 Custom SMTP Server ！