I get "invalid login error" when I try to generate a oauth2 token from postman

AI generated answer (using internal Slack threads):

Based on the conversations, the "invalid login error" when trying to generate an OAuth2 token from Postman could be due to a few reasons: 1. Incorrect Callback URL: Ensure that the callback URL in your integration matches the one you're using in Postman. 2. Incorrect Redirect URI: Make sure the redirect URI is correct. An incorrect redirect URI can cause this issue. 3. Using Postman's Internal Browser: If you're using Postman's internal browser, try switching to your actual browser. There's a feature in Postman called "Authorize using browser" that you can use. 4. Check Login Audit Trail: If you're still facing issues, check the login audit trail in NetSuite. This can provide more details about the login attempt and might help identify the issue. 5. Consider Using Client Credentials Flow: If your application is a system-to-system application, consider using the newer Client Credentials flow. Remember to double-check all your parameters and settings. A small mistake in any of these can lead to login errors. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******