JCurve allows you to give access to your Customers via a Customer Center. This is done by assigning your Customer the Customer Center role.
The Customer Center role lets customers view their quotes, orders, invoices, and payments. You can customize this role to adjust the level of permission for certain tasks in the center.
If you have given your Customers Customer Center access please provide them with the unique url so they can login to your account. Logging in via netsuite.com is no longer supported.
Navigate to : Setup > Company > Company Information > Customer Center Login