RingCentral OAuth问题：仅主账号授权成功，其余账号提示邮箱未识别

Hey there, let's work through this issue where only your main account can complete OAuth authorization, while the other two get the "sorry we don't recognise your email address" error. Here are actionable steps to diagnose and fix this:

• Verify secondary accounts are registered/verified in the OAuth provider system
  Main accounts often get auto-registered and verified when setting up the OAuth integration, but secondary accounts might have been added to your team without completing the full user setup in the OAuth service. Ask your developers to check if those two email addresses exist in the OAuth provider's user management dashboard, and confirm the accounts have completed email verification (look for any pending verification emails in their inboxes).

• Check OAuth app's access restrictions
  Many OAuth services let you restrict which users or teams can authorize an app. It's possible the main account is an admin with unrestricted access, but the secondary accounts aren't added to the allowed user group or team for this specific OAuth application. Head to your OAuth app's settings page, look for sections like "Allowed Users", "Team Access", or "Authorization Permissions", and ensure the two email addresses are included in the approved list.

• Double-check email address spelling and format
  It sounds basic, but typos happen! Have your developers confirm the exact email address they're using for authorization matches what's registered in the OAuth system. Common mistakes include misspelled domains (e.g., gamil.com instead of gmail.com) or missing dots in usernames.

• Review OAuth provider error logs
  If you have access to the OAuth provider's admin panel, pull up the authorization request logs for the failing accounts. These logs usually include more detailed error context—like "user not found" or "email not verified"—which can point you directly to the root cause instead of just the generic message.

• Reset secondary account user data
  If all else fails, try removing the two secondary accounts from the OAuth provider's user list and re-inviting them to register/verify. Sometimes cached or corrupted user data can cause authorization issues, and a fresh setup can resolve these glitches.

内容的提问来源于stack exchange，提问作者Robert