This section displays the customer's main contact and access information. Fields marked in white can be edited. Dimmed fields are view-only.
In this section, customers have the option to change the portal password used for logging in to their Customer Portal, as well as to select the preferred language for their portal page.

The customer's Profile section and its fields can be configured in Config → Main → Portal (Per partner settings → Profile).

The customer can also choose a language in which to view the information on their portal:

The admin can configure the set of languages available for selection on the Customer Portal under Config → Main → Portal (General settings → Main → Languages):

Here, customers can set how they want to receive notifications or they can disable them (when Select all is deselected) for Billing & Payments, Service & Support, or Promotions & Offers.
The options are Email, SMS, or WhatsApp (available only for Promotions & Offers). See also Communication preferences.

Customers cannot disable notifications for Account & Security, as they are required for service security and compliance.