Setup OAuth 1.0

Specify the below mentioned fields in the POSTMAN

1. HTTP Method (GET/POST/PUT/DELETE)
2. URL
3. In Authorization subtab specify the
   1. Type: OAuth1.0
   2. Add authorization data to: Request Headers
   3. Signature Method: HMAC-SHA256
   4. Consumer Key
   5. Consumer Secret
   6. Access Token
   7. Token Secret
   8. Realm

Consumer key, Consumer secret, Access token and Token secret will be available from the NetSuite.