Object Manager and Lightning App Builder15% of the exam
Standard objects, relationships and Schema Builder
How standard and custom objects connect through lookup, master-detail, junction and hierarchical relationships, what each relationship does to deletion, ownership, sharing and roll-ups, and where record types and Schema Builder fit in the data model.
Describe the standard object architecture and relationship model (for example: standard object, parent/child, master detail/lookup/junction relationships, record types, Schema Builder).
~7 min read · 17 practice questions ·
What the exam expects
- Recognise when a delivered standard object or standard junction (Opportunity Contact Roles, Campaign Members) already meets a requirement, before building a custom object.
- Choose between lookup, master-detail, many-to-many (junction), hierarchical and external relationships from requirements about deletion, ownership, sharing, required values and roll-ups.
- Predict the effects of changing a relationship: converting lookup to master-detail and back, enabling reparenting, and the per-object relationship limits.
- Explain how record types present different picklist values, business processes and page layouts on the same object.
- Use Schema Builder to view and build objects, fields and relationships, and know what it cannot do.
Key facts
Default lookup delete behaviour
- Detail
- Clear the value of this field
Delete this record also
- Detail
- Custom lookup on a custom object only; disabled until Salesforce enables it
Reparenting detail records
- Detail
- Blocked unless Allow reparenting is selected
Lookup to master-detail
- Detail
- Every record must have a lookup value
Master-detail to lookup
- Detail
- Blocked while roll-ups exist on the master
Junction primary relationship
- Detail
- First master-detail created; drives look, owner and division
Schema Builder cannot add
- Detail
- Geolocation fields
- Which lookup delete option is the default, and which one requires Salesforce to enable it?
- When can a lookup relationship be converted to master-detail?
- Which relationship on a junction object determines the owner its records inherit, and how is it chosen?
- Why does a campaign need Campaign Member rather than a lookup or multi-select picklist to track who responded?
- Why must a third parent reference on a junction object be a lookup?
The questions are free to read. Answers with their sources and self-grading are included with the pack.
Keep reading with the Platform Administrator pack
- Core concepts
- Exam traps
- Worked scenario
The pack includes:
- All 28 lessons of the Platform Administrator guide, with reading progress
- Interactive decision walks and step-by-step sequence steppers
- Inline practice questions and one-click topic practice (17 questions for this lesson)
- An official source cited for every claim
- An AI tutor that answers from the guide
- Unlimited timed practice exams