Salesforce Certified Platform App Builder — Question 184

Which three statements are true about Master-Detail relationships? (Choose three.)

Answer options

• A. Standard objects can be on the detail side of a custom object in a Master-Detail relationship.
• B. Master-Detail relationships cannot be converted to a look-up relationship.
• C. Deleting a master record in a Master-Detail relationship deletes all related detail records.
• D. Master-Detail relationships can convert to a lookup relationship if no roll-up summary fields exist on the master object.
• E. A Master-Detail relationship cannot be created if the custom object on the detail side already contains data.

Correct answer: C, D, E

Explanation

Option C is correct because deleting the master record automatically deletes all detail records. Option D is also true, as the conversion from Master-Detail to lookup is possible when there are no roll-up summary fields on the master object. Option E is accurate since a Master-Detail relationship cannot be created if the detail side already contains data, ensuring data integrity. Options A and B are incorrect; standard objects can be on the detail side and Master-Detail relationships can be converted to lookup relationships under specific conditions.