Junction objects help associate two objects. They are custom objects in Salesforce that allow building a Master-Detail relationship established between two different data objects. It uses a many-to-many relationship to link many junction objects to several records.
Example: If a candidate applies for a job, then the job profile can be connected to many applicants, and the candidate can be linked to several other jobs as well. Here, the junction object will be the ‘job profile.’
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