Could anyone please help me get authentication from a server side script on one NetSuite account working with a RESTlet using TBA on another account? I've got it working in Postman but when I try the same settings in NetSuite I'm getting invalid login attempts. I think I most likely need a better Oauth script but I don't understand enough of it to know what I'm looking for.

In Postman click on the icon for viewing the code it generates and then use that pattern for generating your signature.

That was my problem, thank you!!!!