Salesforce Certified Platform App Builder — Question 164

Universal Containers has a junction object called Billings with a primary Master-Detail relationship with Accounts and a secondary Master-Detail relationship with
Orders. The app builder has a requirement to change the primary Master-Detail relationship to a Lookup.
What happens to the secondary Master-Detail relationship with Orders?

Answer options

• A. The secondary Master-Detail object relationship needs to be reestablished.
• B. The secondary Master-Detail object also converts to a lookup.
• C. The secondary Master-Detail object becomes the primary.
• D. The secondary Master-Detail object relationship is no longer valid.

Correct answer: C

Explanation

When the primary Master-Detail relationship is changed to a Lookup, the secondary Master-Detail relationship automatically becomes the primary relationship. This is because a junction object can only have one primary Master-Detail relationship, and the secondary one takes precedence in this scenario. The other options do not accurately reflect what happens to the relationships in this case.