Invalid request: Client ID mismatch error

I ran into error code 401, client ID mismatch when I try to follow the steps to retrieve the access_token from an user. I have no idea what the error is about, since I’ve double checked my client_id both in the request for user authorization and for the access token, and they seem to match.

I20200522-17:39:30.567(-4)? response: {
I20200522-17:39:30.567(-4)? statusCode: 401,
I20200522-17:39:30.568(-4)? content: ‘{“reason”:“Invalid request : Client ID mismatch”,“error”:“invalid_client”}’,
I20200522-17:39:30.568(-4)? headers: {
I20200522-17:39:30.568(-4)? date: ‘Fri, 22 May 2020 21:39:30 GMT’,
I20200522-17:39:30.568(-4)? ‘content-type’: ‘application/json;charset=UTF-8’,
I20200522-17:39:30.568(-4)? ‘transfer-encoding’: ‘chunked’,
I20200522-17:39:30.568(-4)? connection: ‘close’,
I20200522-17:39:30.568(-4)? server: ‘ZOOM’,
I20200522-17:39:30.568(-4)? ‘x-zm-trackingid’: ‘WEB_c0b6183cd26e969c68bee52564ec2f2b’,
I20200522-17:39:30.568(-4)? ‘x-content-type-options’: ‘nosniff’,
I20200522-17:39:30.568(-4)? ‘content-security-policy’: “default-src blob: ‘self’; script-src ‘unsafe-eval’ ‘unsafe-inline’ blob: about: ‘self’; img-src https: http: about: blob: data: ‘self’; style-src https: safari-extension: chrome-extension: ‘unsafe-inline’ data: ‘self’; font-src https: safari-extension: chrome-extension: blob: data: ‘self’; connect-src * about: blob: data: ‘self’; media-src * rtmp: blob: data: ‘self’; frame-src https: ms-appx-web: zoommtg: zoomus: wvjbscheme: data: ‘self’”,
I20200522-17:39:30.568(-4)? ‘set-cookie’: [Array],
I20200522-17:39:30.568(-4)? p3p: ‘CP=“NOI ADM DEV PSAi COM NAV OUR OTR STP IND DEM”’,
I20200522-17:39:30.568(-4)? ‘cache-control’: ‘no-store’,
I20200522-17:39:30.569(-4)? pragma: ‘no-cache’
I20200522-17:39:30.569(-4)? },
I20200522-17:39:30.569(-4)? data: {
I20200522-17:39:30.569(-4)? reason: ‘Invalid request : Client ID mismatch’,
I20200522-17:39:30.569(-4)? error: ‘invalid_client’
I20200522-17:39:30.569(-4)? }
I20200522-17:39:30.569(-4)? }
I20200522-17:39:30.569(-4)? }

Which App Type (OAuth / Chatbot / JWT / Webhook)?

Which Endpoint/s?

POST request at url:${code}&redirect_uri=

header: {
Authorization: Basic ${hash}

Hey @haydenr,

Are you installing the test version (uses development client id) or the production version (uses production client id) of app?