Controlled by Parent, master-detail and implicit sharing
How a master-detail relationship makes a detail object's access follow its master (and what the detail loses), how junction objects need access to both masters, when a lookup can be converted, and what built-in implicit sharing gives between accounts and their contacts, opportunities, cases, orders and contracts.
Given a set of conditions, determine the correct object relationships that support record access sharing requirements.
~8 min read · 13 practice questions ·
What the exam expects
- Choose master-detail or lookup from how a child's access, ownership and deletion must behave.
- Predict who can view or change detail and junction records from master access and the Sharing Setting.
- Know what a detail loses (owner, sharing rules, manual sharing, queues) and when a lookup converts.
- Predict implicit parent and child access between accounts and their contacts, opportunities, cases, orders and contracts.
- Recognise that implicit sharing is standard relationships only and can't be configured.
Key terms: master-detail (a relationship where the detail inherits security from the master); Controlled by Parent (the default that makes access follow the parent record); Sharing Setting (the master access, Read Only or Read/Write, needed to change a detail); junction object (a detail with two masters, modelling many-to-many); implicit sharing (built-in access between an account and its standard child records).
Key facts
- Detail
- No sharing rules, manual sharing or queues
- Detail
- Read or read/write on the master, per Sharing Setting
- Detail
- Read access to both masters
- Detail
- Every record needs a value; default becomes Controlled by Parent
- Detail
- 2 master-detail per object, 3 custom detail levels; 10,000 children best practice
- Detail
- Standard relationships only
- Detail
- Doesn't give parent account access
- Why can't an admin create a queue for a custom object on the detail side of a master-detail relationship?
- When does access to a contact give a user Read Only access to its Private parent account?
- What happens to a former detail object's default when its master-detail is converted to a lookup?
- Why can't a user transfer an opportunity to a rep who can't see its account?
The questions are free to read. Answers with their sources and self-grading are included with the pack.
Keep reading with the Platform Sharing and Visibility Architect pack
- Core concepts
- Exam traps
- Worked scenario
The pack includes:
- All 21 lessons of the Platform Sharing and Visibility Architect guide, with reading progress
- Interactive decision walks and step-by-step sequence steppers
- Inline practice questions and one-click topic practice (13 questions for this lesson)
- An official source cited for every claim
- An AI tutor that answers from the guide
- Unlimited timed practice exams