How to resolve the error when adding or changing email in the customer profile.

This happens when a user is changing an email address on a customer record with existing Access to Customer Center on the Access tab (Give Access = True) or when a user is providing the customer a new access to Customer Center role without selecting any of the two fields: Send New Access Notification Email or Manually Assign or Change Password.

Following setups has to be performed to change the email address:

1. Edit the value on email address field to new valid email address.
2. Go to Access tab > Set: Give Access = True
3. Fill out the Password and the Confirm Password fields with the same value representing a temporary password.
4. Mark the Send New Access Notification Email check box to notify this customer automatically by email when you give them new access to NetSuite. For security, the e-mail will not disclose the password. You need to contact your customer with this information.
5. Save the customer record.