Advance Notice: Deprecation of RESTlet Authentication Through User Credentials

This notice is intended for customers who are using user credentials for RESTlet authentication. This means that you are using a username and password (an NLAuth authorization header) for authentication. Deprecation of RESTlet authentication through user credentials is planned for all new RESTlets created as of NetSuite 2021.1 or later. What is the reason for this change? Authentication through user credentials is considered an obsolete and insecure authentication method. Oracle NetSuite encourages the usage of more secure authentication methods, for example, token-based authentication (TBA) or OAuth 2.0. Additionally, by using TBA or OAuth 2.0, you can avoid having to update your integration configuration when a password is changed.