Google Contacts OAuth2 Credential Issue

[MortgageRockstar]

Describe the issue/error/question

I have started to regularly run into credential error issues with the Google Contact node over the past month or so which causes my workflow to fail even though n8n shows my Google account as connected. When I reconnect my Google account, it works again, but then I experience the issue again not long later.

What is the error message (if any)?

NodeApiError: UNKNOWN ERROR - check the detailed error for more information
    at Object.googleApiRequest (/usr/local/lib/node_modules/n8n/node_modules/n8n-nodes-base/dist/nodes/Google/Contacts/GenericFunctions.js:26:15)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at Object.execute (/usr/local/lib/node_modules/n8n/node_modules/n8n-nodes-base/dist/nodes/Google/Contacts/GoogleContacts.node.js:236:44)
    at Workflow.runNode (/usr/local/lib/node_modules/n8n/node_modules/n8n-workflow/dist/Workflow.js:658:28)
    at /usr/local/lib/node_modules/n8n/node_modules/n8n-core/dist/WorkflowExecute.js:590:53

Information on your n8n setup

• n8n version: 0.219.1
• Database you’re using (default: SQLite): SQLite
• Running n8n with the execution process [own(default), main]: ?
• Running n8n via [Docker, npm, n8n.cloud, desktop app]: Docker

[MutedJam]

Hi @MortgageRockstar, is there a chance your Google Cloud app has its Publishing status set to Testing and User type set to External?

If so, this is expected I am afraid (it’s a limitation imposed by Google). You’d need to publish it for the authentication to last longer than 7 days:

Google Calendar OAuth - refresh token

Hi @danielrubak, seeing this is happening every seven days for you, I suspect this isn’t a problem with n8n not attempting the refresh but rather with Google not allowing the refresh. You might need to publish the OAuth2 client you have registered with Google, as for test users the authentication will expire after seven days as per Google’s documentation: Authorizations by a test user will expire seven days from the time of consent. From testing this myself it seems Google doesn’t enforce th…

[MortgageRockstar]

Thanks @MutedJam .

Yes, My Google Cloud app’s publishing status was set to Testing and the user type was set to external. I have now published it and will report back if I have further issues.