cannot add gmail to outlook

Question

i cannot add my gmail account to the old outlook, its ok on the new version but not the old one.

Answer 1

This issue has been widely reported, and Microsoft is currently working on a fix and plan to release the patch as soon as possible.

In the meantime, if you are experiencing this issue with Outlook Classic, you should be able to access your Gmail account using the web browser version of Outlook or the new app.

Also, until a patch is released for the Outlook Gmail account issue, please check out the solutions provided by Microsoft via this link.

https://support.microsoft.com/en-us/office/users-get-errors-0x800ccc0e-0x800ccc0f-synchronizing-gmail-and-yahoo-accounts-in-classic-outlook-e5a7b684-7c5c-4848-ab2d-d48291451f67

Answer 2

Classic Outlook currently has known issues adding or syncing Gmail accounts, even when they work in the new Outlook. Use the following steps that match the symptoms.

1. Confirm Outlook is on a fixed build

• The Gmail sign-in issues are fixed starting with these builds:
  • For “browser or app may not be secure” / IMAP setup errors: Current Channel Version 2404 (Build 17531.10000) and later.
  • For missing Gmail permission (“Read, compose, send, and permanently delete all your email from Gmail”): Current Channel Version 2412 (Build 18324.20168) and later.
• In classic Outlook, go to File > Office Account > About Outlook and verify the version/build.
• If older, update Office from File > Office Account > Update Options > Update Now.

2. Add Gmail to classic Outlook using the built-in flow If the account is not yet added in classic Outlook:
3. In classic Outlook, select File > Add Account.
4. Enter the Gmail address and select Connect.
5. In the Gmail sign-in window, confirm the address and select Next.
6. Enter the Gmail password and follow the prompts.
7. On the Google account permissions window, select Allow so Outlook can access Gmail.
8. When Outlook finishes, select Done.

If a “Something went wrong” error appears during setup, select Retry and complete the sign-in again.

3. Fix errors caused by missing Gmail permission (classic Outlook only) If classic Outlook shows errors like:

• “We couldn’t log on to the incoming (POP/IMAP) server…”
• “We weren’t able to set up your Google account with IMAP…”
• Error 0x800CCC0E when syncing Gmail and the same Gmail works in new Outlook, the usual cause is that the Gmail permission for Microsoft apps & services was not fully granted.

On a fixed build (Current Channel Version 2412 Build 18324.20168 or later):

• When the error appears in Outlook, use the Retry link in the error window to reopen the browser sign-in and this time ensure the permission for “Read, compose, send, and permanently delete all your email from Gmail” is selected/allowed.

If Retry does not work, use the manual workaround below.

4. Manual workaround when classic Outlook still cannot add Gmail Follow these steps only for the affected Gmail account.

Step 1: Remove Microsoft apps & services access in Gmail

1. Close Outlook.
2. Sign in to the Google account at google.com.
3. Select the profile picture > Manage your Google Account.
4. In the left menu, select Security.
5. Scroll to Your connections to third-party apps & services and select Microsoft apps & services.
6. Find Microsoft apps & services has some access to your Google Account and select See Details.
7. Under Access you've given to Microsoft apps & services, select Remove all access.
8. Select Confirm.

Step 2: Remove cached Google IMAP credentials from Windows Credential Manager

1. Open Credential Manager from the Start menu (in Windows 10, open Control Panel first if needed, then Credential Manager).
2. Select Windows Credentials.
3. Under Generic Credentials, find entries starting with MicrosoftOffice16_Data:OAUTH2.
4. Expand each and hover over the name until the full name including tp_google_imap_Oauth2 appears – these are the Gmail IMAP credentials.
5. For each credential with MicrosoftOffice16_Data:OAUTH2 and tp_google_imap_Oauth2, select Remove. There are typically two per Gmail account.

After completing both steps, reopen classic Outlook and add the Gmail account again using File > Add Account, then complete the Google sign-in and select Allow when prompted for permissions.

5. If Outlook won’t accept the Gmail password If classic Outlook rejects the Gmail password but the password is correct, an older Outlook build may not support the newer, faster Gmail setup. In that case, configure Gmail with:

• Two-factor authentication in Google, and
• A Google app password for Outlook (do not use a Microsoft app password).

Then add the Gmail account in classic Outlook using the app password instead of the normal Gmail password.

If IMAP is disabled in the Gmail account, Outlook will also fail with “We weren’t able to set up your Google account with IMAP.” Ensure IMAP is enabled in Gmail settings if that control still exists for the account.

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References:

• Unable to add a Gmail account to classic Outlook
• Add a Gmail account to Outlook for Windows
• Unable to sign in or add a Gmail account to classic Outlook
• gmail accounts no longer working in outlook classic - Microsoft Q&A
• search for solutions another user has found - Microsoft Q&A