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Business Platforms & EA · Foundational

Many-to-Many Relationship

Data model where records of one object relate to many of another and vice versa, implemented in Salesforce with a junction object.

Definition

Salesforce has no native many-to-many field; designers create a junction object with two master-detail (or lookup) relationships. Standard examples include OpportunityContactRole and Contacts to Multiple Accounts (AccountContactRelation).

Exam tip

Answer with junction object whenever a scenario requires many records on both sides.

Related terms