Logging in to Development Accounts
Users access development accounts in the same way that they access their production account. They can open a browser window and go to system.netsuite.com
and enter their email address and password on the login page. Their role in a development account can be selected from the My Roles page or the Change Roles list.

By default, new development accounts are only accessible to the administrator for whom the account was provisioned. This administrator can create up to 10 users for each account. See Granting Access to Development Accounts. Users who need access to development accounts should contact this administrator.