Airtable Credetials Issue

Describe the problem/error/question

I have been trying to use the Airtable node for the last 24 hours and I keep getting the following error messages. I have created multiple new credentials, I have logged in and out of both N8N and Airtable and I keep getting this same error. Leaving Airttable unusable.

What is the error message (if any)?

Error: The request is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed.

{“error”:“invalid_request”,“error_description”:“The "code_verifier" must only contain characters that are in: [A-Z] / [a-z] / [0-9] / "-" / "." / "_"”}

If someone has an answer or a fix please let me know ASAP, I have just moved from and I can not run a single thing atm…

Information on your n8n setup

  • n8n version: Cloud

  • Operating system: Windows

Hi @Zac_Magee :wave: Sorry to hear you’re running into this.

I can see you also posted in this thread: Airtable Oauth2 credential setup failing (due to PKCE error with "code_verifier")

Unfortunately, it looks like Airtable is rejecting a character that would usually be supported by this field. Retrying the connection generates a new code_verifier, which would be the only workaround at the moment.

This is something our engineering team has their eyes on (as mentioned by Jon in the other thread), and hopefully we’ll have a fix out for this soon. I’ll be back with any updates or additional workarounds as soon as I know of them.

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Hey! Thank you. I will keep an eye out!

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