ServiceNow CAD - Certified Application Developer - ServiceNow

https://docs.servicenow.com/bundle/tokyo-application-development/page/app-store/dev_portal/API_reference/glideSystemScoped/concept/c_GlideSystemScopedAPI.html

In ServiceNow, extending a table means creating a new table (child class) that inherits properties from an existing table (parent class). This inheritance includes fields, business logic, and other configurations, allowing for efficient reuse and customization.

Key Points:

Field Inheritance: The child table inherits all fields from the parent table. For example, if you extend the Task table, your new table will include fields like "short_description" and "priority."

Business Logic Inheritance: The child table also inherits business rules, client scripts, and other logic defined on the parent table, ensuring consistent behavior across related tables.

Access Controls: Access controls are not ignored; instead, the child table inherits the parent table's access controls. However, you can define additional access controls specific to the child table as needed.

Customization: While the child table inherits many properties, you can add new fields, scripts, and behaviors to tailor it to specific requirements without affecting the parent table.

"By default, all application scope scripts can read the table's records but cannot perform any other database operations." https://developer.servicenow.com/dev.do#!/learn/learning-plans/tokyo/servicenow_administrator/app_store_learnv2_securingapps_tokyo_application_access_database_settings

Ensuring that users receive email notifications in ServiceNow requires verifying specific attributes on the user record:

A. The Email field must have a valid value: This is correct. The Email field should contain a valid email address, as notifications are sent to the address specified in this field.

B. The user must not be locked out: While it's important for user access, being locked out does not directly impact the sending of email notifications.

C. The First name and Last name fields must have values: These fields are for identification purposes and do not affect email notification delivery.

D. Active must be true: This is correct. Only active users are eligible to receive email notifications. If a user is marked as inactive, notifications will not be sent to them.

E. Delegation must be enabled: Delegation pertains to assigning responsibilities to another user and does not influence the receipt of email notifications.

For effective email notification delivery, always ensure that the user's Email field contains a valid address and that the Active field is set to true.

https://docs.servicenow.com/bundle/tokyo-servicenow-platform/page/administer/notification/task/t_CreateANotification.html