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:wave: Hello, team! kindly help me its my last day to resolve the issue

have you at least identified steps you need to make progress?

I think you should blank out the url, keys and secrets in your screenshot immediately

i try to setup many times but not got succcess

image.png

that is how it traditionally works, but netsuite uses <https://datatracker.ietf.org/doc/html/rfc7521|assertions> in its implementation, specifically <http://tools.ietf.org/html/rfc7523|JWT Bearer Assertion>

you will need to <https://system.netsuite.com/app/help/helpcenter.nl?fid=section_162686838198.html|setup> a certificate for use in netsuite first, and then familiarize yourself with the <https://system.netsuite.com/app/help/helpcenter.nl?fid=section_162730264820.html|OAuth 2.0 Client Credentials Flow>

you will need to setup a <https://learning.postman.com/docs/tests-and-scripts/write-scripts/intro-to-scripts/|postman script> to setup the required headers, postman does not implement assertions

i personally like <https://joolfe.github.io/postman-util-lib/|postman-util-lib> for the crypto part, though it does expect you to convert your private key from pem format to jwk

i dont have the access of account. <@U5TF1GQ20>

then your chances of implementing this drastically fall

its the only place you are going to have useful error messages