ServiceNow CAD - Certified Application Developer - ServiceNow

A Module Link type defines how the module opens in the content pane when the user clicks on it in the navigation pane1. The URL (from Arguments) link type allows you to specify a URL that opens the Application Properties page for the selected application2. The URL can include arguments that are evaluated at runtime, such as the application name or scope3.

References = 1: Module link types - ServiceNow Docs 2: Application properties - ServiceNow Docs 3: URL (from Arguments) - ServiceNow Docs

Understanding Scoped Applications:Scoped applications in ServiceNow are designed to isolate and protect application-specific code and data. Server-side scripts within scoped applications can use the gs (GlideSystem) object for logging and debugging purposes. However, not all gs methods are appropriate or valid for scoped applications.

Valid Logging Methods in Scoped Applications:

gs.info():This method logs informational messages to the system log. It is commonly used for general-purpose logging when developers need to track execution flow or display debug data. Example:

gs.info('This is an informational log message.');

gs.error():This method logs error messages to the system log. It is used to indicate problems or issues encountered during script execution. Example:

gs.error('An error occurred during script execution.');

Incorrect Options Explained:

gs.debug() (Option B): This method is not valid in scoped applications. It is a legacy logging method available in the global scope but restricted in scoped applications.

gs.iog() (Option C): This is a typographical error and not a valid gs method in ServiceNow.

gs.logError() (Option E): This is not a recognized ServiceNow API method. To log errors, gs.error() is used instead.

Best Practices for Logging:

Logging should be meaningful and avoid unnecessary entries to keep logs clean and manageable.

Avoid excessive use of logging in production environments, as it can clutter the system logs and potentially degrade performance.

ServiceNow Developer Documentation on GlideSystem (gs)​.

SN Pro Tips on debugging and logging practices in scoped applications​.

ServiceNow provides multiple ways to show messages to users in the UI, and the correct method depends on whether the message is meant for the top of the form or next to a specific field. In the GlideForm client API, ServiceNow documents g_form.addInfoMessage(String message) as the method that adds an informational message to the top of the form. This is the standard client-side approach for showing an info banner at the top area of the current form and is commonly used in Client Scripts and UI Policies to inform users about guidance, rules, or results of client-side logic. ServiceNow’s GlideForm documentation specifically names this method and provides examples of its usage via g_form. By contrast, g_form.showFieldMsg() (and similarly named field-message functions) are used to display messages associated with a particular field location, not as a general blue banner at the top of the form. The option g_form.addInfoMsg() is not the documented default method name. Therefore, the correct answer is g_form.addInfoMessage().

When creating a table in a privately-scoped application, four Access Controls are automatically created for the table. These Access Controls define the permissions for the four basic operations on the table: Create, Delete, Read, and Write. The Create operation allows the user to create new records on the table. The Delete operation allows the user to delete existing records on the table. The Read operation allows the user to view the records on the table. The Write operation allows the user to modify the records on the table. By default, these Access Controls grant access to the admin role and the application scope. You can modify or delete these Access Controls as needed.

The other options are not valid Access Controls for a table. Insert, Query, and Update are not operations, but methods of the GlideRecord class that are used to manipulate records on the server-side. They are not part of the Access Control rules.

The Create Branch operation is available from both Studio and the Git Repository. This operation allows you to create a new branch from an existing branch in your Git repository. You can use branches to work on different features or versions of your application without affecting the main branch. Reference: [Create a branch]

ServiceNow notifications can sometimes be triggered close together for the same record and the same recipients, which can lead to redundant or conflicting messages. To control this, the Notification record includes a Weight field. ServiceNow documentation explains that when multiple notifications are generated for the same target table record and the recipients overlap, the system compares the notifications using the Weight value and sends only the notification with the highest weight. This allows administrators and developers to prioritize the most important notification when multiple are eligible to fire. A common example in the documentation is when an incident is updated (triggering an “commented” notification) and then closed shortly after (triggering a “closed” notification). If both would go to the same user, ServiceNow will select the one with the higher weight, ensuring users receive the most relevant final message instead of multiple emails. This behavior is the intended purpose of Weight: reduce notification noise and prevent conflicts by giving precedence to the highest-weight notification.

The following roles grant access to source control repository operations such as importing applications from source control, or linking an application to source control:

source_control. This is a role that allows users to perform basic source control operations, such as importing an application from a source control repository, updating an application from a source control repository, or committing changes to a source control repository.

admin. This is a role that grants full access to all the features and functions of the ServiceNow platform, including source control operations. Users with this role can also perform advanced source control operations, such as creating or deleting source control repositories, configuring source control properties, or resolving conflicts.

The following roles do not grant access to source control repository operations:

source_control_admin. This is not a valid role in ServiceNow. There is no separate role for source control administration, as this function is included in the admin role.

git_admin. This is not a valid role in ServiceNow. Git is a specific type of source control system that ServiceNow supports, but there is no role dedicated to Git administration. References: Source Control, Source Control Roles

The Application Repository is a central location for storing, managing, and distributing custom applications developed on the Now Platform.

From Developer Site > App Repo:

“The ServiceNow Application Repository stores custom applications and enables developers to distribute applications across multiple instances in their organization.”

In ServiceNow, a Record Producer is a specific type of catalog item that enables users to create task-based records through a simplified interface.

servicenow.com

To create a module that directs users to a Record Producer UI:

Link Type Selection: Choose "URL (from Arguments:)" as the Link Type. This option allows you to specify a direct URL, enabling the module to open the desired Record Producer interface.

URL Configuration: In the "Arguments" field, input the URL that points directly to the Record Producer. This URL typically follows the format:

/record_producer.do?sys_id=

Replace with the actual sys_id of the Record Producer you intend to open.

By configuring the module this way, users accessing it will be presented with the Record Producer's user-friendly interface, facilitating the creation of new records without navigating through the standard form UI.