Salesforce DEX-403 Exam Dumps

Get All Declarative Development for Platform App Builders in Lightning Experience Exam Questions with Validated Answers

DEX-403 Pack
Vendor: Salesforce
Exam Code: DEX-403
Exam Name: Declarative Development for Platform App Builders in Lightning Experience
Exam Questions: 291
Last Updated: June 8, 2026
Related Certifications: Platform APP Builder
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Free Salesforce DEX-403 Exam Actual Questions

Question No. 1

The VP of Sales at Universal Containers has asked the app builder to let sales reps create opportunity records directly from the account, with a number of fields pre-populated.

Which feature should the app builder use to allow users to create the opportunity?

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Correct Answer: A

The feature that the app builder should use to allow users to create the opportunity is a quick action. A quick action is a type of custom button or link that can create or update records, log calls, send emails, or launch flows from a record page or a global menu. The app builder can create a quick action on the account object that creates an opportunity record with pre-populated fields. Option B is incorrect because a default action is not a valid term, but rather a standard action that appears on every record page by default, such as Edit or Delete. Option C is incorrect because a custom button is not suitable for this requirement, as custom buttons can only display a URL or execute JavaScript when clicked. Option D is incorrect because a custom link is not suitable for this requirement, as custom links can only display a URL or execute JavaScript when clicked.


Question No. 2

Which three standard component types are available in the Lightning App Builder?

Choose 3 answers

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Correct Answer: B, D, E

In the Lightning App Builder, the following standard components can be used to enhance the functionality of Lightning pages:

B . Rich text: Allows the inclusion of formatted text, links, and images on a page.

D . Report details: Enables embedding of specific report details directly on a page.

E . Recent items: Displays a list of recently accessed items relevant to the user.

Steps to add these components:

Open the Lightning App Builder via Setup Edit Page or when creating a new Lightning page.

Drag and drop the Rich text, Report details, and Recent items components from the standard components section onto the page layout.

Configure each component as needed (e.g., selecting a specific report for the Report details component).

For more on using these components, refer to Salesforce's guide on Standard Lightning Components.


Question No. 3

Cloud Kicks (CK) wants to set up a custom child object to track gift cards issued to a customer. A key requirement is to track the total number of gift cards opened and gift cards issued on an Account. CK wants to permanently ensure the gift cards are unable to be moved across any other Account once it is created.

On the gift card object, what type of field should be created to support this requirement?

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Correct Answer: A

The app builder should create a master-detail relationship field on the gift card object to support the requirement. A master-detail relationship field creates a parent-child relationship between two objects, where the master record controls certain behaviors of the detail record. In this case, the Account object would be the master and the gift card object would be the detail. By creating a master-detail relationship field, the app builder can meet these requirements:

Track the total number of gift cards opened and gift cards issued on an Account: This can be done by creating roll-up summary fields on the Account object that count or sum up the values from the gift card records related to each account.

Permanently ensure the gift cards are unable to be moved across any other Account once it is created: This can be done by making the master-detail relationship field required on the gift card object, which means that every gift card record must be associated with an account record and cannot be changed once set. Option B, C, and D are not types of fields that can support this requirement.


Question No. 4

What option is available to an App Builder when defining an object-specific Create Record custom action? Choose 2 answers

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Correct Answer: A, C

The app builder has two options available when defining an object-specific Create Record custom action:

Pre-Defining field values on the target object. This means that the app builder can specify default values for certain fields on the target object when creating a new record using the custom action.

Specifying the fields and layout of the action. This means that the app builder can choose which fields to include in the action and how they are arranged on the screen. Option B and D are not options available when defining an object-specific Create Record custom action.


Question No. 5

Universal Containers has a single Contact Lightning record page. A component takes up a lot of room on the page and is NOT needed by users with a Marketing profile.

What should the app builder use to solve this Issue?

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Correct Answer: B

The feature that the app builder should use to solve this issue is component visibility filter. A component visibility filter is a setting that can be applied to a Lightning component on a record page to control when the component is hidden or displayed based on certain conditions. The app builder can use a component visibility filter to hide the component from users with a Marketing profile. Option A is incorrect because detail page layouts are not related to Lightning components, but rather the fields and related lists that appear on record detail pages. Option C is incorrect because field-level security is not related to Lightning components, but rather the access level of fields for different profiles or permission sets. Option D is incorrect because AppExchange is not related to Lightning components, but rather an online marketplace where users can find and install apps and components.


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