We have been encountering an “invalid_request” error during OAuth 2.0 authentication, and despite checking the configuration multiple times, the error persists.

1. Error Description:
   • We are consistently seeing an “invalid_request” error when attempting OAuth 2.0 authentication.
2. Integration Settings:

   CLIENT_ID = f5bff7ee775c6b011848588deb91c6cb32dcb8d527d94b7dcf6f145c9675a84b
   CLIENT_SECRET = 3c1a0296adf9766d0e24e8f52b2e844b9fcbe49b0cfcdc8b766273fa09afe524
   REDIRECT_URI = https://script.google.com/macros/s/AKfycbyEySKF0-fPK6OlIhqTona78gIP-nPpTHW5ckkqhA8_jXCiQPCg9A7W460Ex8hQOWDx/exec‘; // Google Apps Script의 Web App URI
   TOKEN_URL = https://4513429.suitetalk.api.netsuite.com/services/rest/auth/oauth2/v1/token

   attached: document

3. Code Sample:

   var CLIENT_ID = ‘f5bff7ee775c6b011848588deb91c6cb32dcb8d527d94b7dcf6f145c9675a84b’;
   var CLIENT_SECRET = ‘3c1a0296adf9766d0e24e8f52b2e844b9fcbe49b0cfcdc8b766273fa09afe524’;
   var REDIRECT_URI = ‘https://script.google.com/macros/s/AKfycbyEySKF0-fPK6OlIhqTona78gIP-nPpTHW5ckkqhA8_jXCiQPCg9A7W460Ex8hQOWDx/exec‘;
   var TOKEN_URL = ‘https://4513429.suitetalk.api.netsuite.com/services/rest/auth/oauth2/v1/token‘;

   function authorize() {
   var state = Math.random().toString(36).substring(7);
   var url = ‘https://4513429.suitetalk.api.netsuite.com/services/rest/auth/oauth2/v1/authorize‘ +
   ‘?response_type=code’ +
   ‘&client_id=’ + encodeURIComponent(CLIENT_ID)
   ‘&redirect_uri=’ + encodeURIComponent(REDIRECT_URI)
   ‘&scope=rest_webservices’ +
   ‘&state=’ + state;

   Logger.log(‘Please visit the following URL to complete the verification process: ‘ + url);
   }

5. Role Permissions:
   • Does the user role making the API requests have the necessary permissions for REST Web Services.