Difference between lookup & master detail relationship | Question-02 | Interview Preparation Series

Top 10 Questions asked to Salesforce Admins
Question 2 : What is the difference between lookup & master detail relationship ?
What is a master detail relationship?
The Master Detail relationship is used when a user wants to manage the display of detail records based on the value reflected in the master record. As an example, in a courier company, it is always that the delivery schedule is based on the delivery location.
What is the difference between look up and external look up relationship?

What is master detail relationship in Salesforce with example?
The Master Detail relationship is used when we want to control the display of detail records based on the value in the master record. For example, in the courier company model a delivery schedule is always linked to a delivery location.

Can you convert master detail to lookup relationship?
You can convert a master-detail relationship to a lookup relationship as long as no roll-up summary fields exist on the master object. You can convert a lookup relationship to a master-detail relationship, but only if the lookup field in all records contains a value.

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