Unable to authorize the REST API

Hi, I’m trying to get the JIRA Rest API to be a data source using OAuth 2.0 as the authentication. This is for filtering deactivated users based on a previous support question here: (Remove deactivated Assignees - #2 by nauris.malitis) .
However, I get a Welcome to JIRA: The request token cannot be authorized at this time.
The Client ID is my login name, and the Client secret is the Auth token I created from my JIRA account.

Is this the correct information, or am I missing something?

Hi @Liam.Hislop

In my example, I used the “Username & password” Authentication type.
Use your email for the Username, and for the password, use the Jira API token you’ve created: Manage API tokens for your Atlassian account | Atlassian Support

​Let me know if this fits your use case or if you have any additional questions on this!
​Best regards,