Salesforce Platform-App-Builder Actual Questions

The correct answer is D. The Owner field on the Master record.

In a master-detail relationship, the detail record does not have independent ownership. Salesforce documentation states that the Owner field on the detail object isn’t available and is automatically set to the owner of the related master record.

Sharing is also controlled by the parent/master record. Salesforce Help explains that when a custom object is on the detail side of a master-detail relationship, its organization-wide default is set to Controlled by Parent.

A and C are incorrect because the detail record does not maintain independent ownership in a master-detail relationship. B is incorrect because ownership is not determined by a default owner setting on the parent object; it comes from the actual Owner field on the master record.

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The correct answers are A. Tabs and B. Related record.

Tabs help create a more condensed Lightning record page by grouping information into separate tabbed sections instead of showing everything in one long page. Salesforce Lightning App Builder allows app builders to add, remove, reorder, and customize components on Lightning record pages.

Related Record is required because service agents want to modify the associated Contact and Account directly from the Case Lightning record page. Salesforce Help states that the Related Record component uses quick action metadata and requires an associated quick action to update records.

Why others are incorrect:

Path is used to guide users through stages or status values, not to edit related Account or Contact records.

Rich Text displays formatted guidance or static text; it does not provide editable related-record functionality.

The correct answers are A. Unique and D. External ID.

The legacy ID should be marked as an External ID because Salesforce can use an external ID field to match records during import, integration, and upsert operations. Salesforce REST API documentation states that records can be inserted or updated using a specified external ID field.

The field should also be marked Unique so that the legacy system ID identifies one Salesforce Account record only. Salesforce documentation explains that an external ID can represent an ID from another external system, and uniqueness helps prevent duplicate matching values.

B is incorrect because encrypted text is not appropriate for a matching/upsert key.

C is incorrect because Required only forces a value; it does not make the field usable for upsert matching or prevent duplicate legacy IDs.

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The correct answer is C. Record-triggered flow.

To track the number of times a Case is reopened, the app builder can create a record-triggered flow on the Case object that runs when the Case is updated. The flow can check when the Status changes from Closed to an open/reopened status and increment a custom number field such as Number_of_Reopens__c . Salesforce Trailhead explains that record-triggered flows run when records are created, updated, created or updated, or deleted.

Why not Apex Trigger? Apex could work, but the Platform App Builder best answer is the declarative option: Flow before code.