NetSuite RESTLet Postman Delete Record | NetSuite RESTLet | NetSuite ScriptScript | BISP NetSuite

I am trying to integrate netsuite into a c# web app via API just like quickbooks but am going no where the account which is provided to me do not have much access do you have any link from where i can refer.

Currently I am checking for debtor sync to netsuite.

Please provide me links if possible.