Credential code

Questions
1

How do I create a credential to use Google Sheets in n8n. Because I saw all the tutorials, I finally get the client id and client secret but it gives the message: access
blocked: authorization error

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2

Assuming you have correctly configured the consent screen with a valid redirect URL, and you have successfully connected the credential with a user, you may have forgotten to enable apis in the app that your workflow needs to use.

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3

Additionally,

if Your App Is in Testing Mode:

  1. On the same OAuth consent screen, scroll to Test users.
  2. Click Add Users and enter YOUR Google account email (or team members’ emails).
  3. Save.

This lets you grant consent for non-verified apps without full verification.

If You Publish Your App

  • Any scopes classified as “Sensitive” or “Restricted” (like Drive) will require Google’s verification before public use.
  • Until verification is approved, only your listed Test users can authenticate.
  • Once verified, remove test-user restrictions so anyone can connect.
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4

Also, probably need to check the call back URL maybe? Good thoughts though :slight_smile:

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