Salesforce Platform Developer Practice Exam

Which statement is true about Lookup Relationships?

1. Parent is required and cannot be omitted

2. Deleting a parent record deletes its children

3. Roll-up summary fields can be utilized for parent records

4. Child record security access depends on the parent

The correct answer is: Parent is required and cannot be omitted

In the context of Salesforce, a Lookup Relationship is a type of relationship where one object has a reference to another object. This means that in a Lookup Relationship, a child record can optionally relate to a parent record, but the parent record existence is not mandatory for the child record. However, the first statement addresses an essential aspect of the Lookup Relationship. The key feature of Lookup Relationships is that while you can reference a parent record, that reference is not required. The child record can exist independently of the parent, making it flexible. Therefore, stating that the parent is required contradicts the fundamental nature of a Lookup Relationship. In contrast, other aspects like deletion of the parent record affecting the child (which occurs in Master-Detail relationships instead), roll-up summary fields (only applicable in Master-Detail relationships), and security access dependencies involving the child record and parent (more akin to sharing rules in Master-Detail) do not accurately depict the nature of Lookup Relationships. This further reinforces the understanding that the first statement regarding the requirement of the parent is not accurate for Lookup Relationships.