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What is a “Look-up Relationship” in Salesforce?
What is a “Look-up Relationship” in Salesforce?
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3 Replies
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No parent is required.
Relationship is optional.
No impact on Security.
Roll-Up summary fields cannot be available. -
Lookup Relationship (1:n)
This type of relationship links two objects together, but has no effect on deletion or security. Unlike master-detail fields, lookup fields are not automatically required. When you define a lookup relationship, data from one object can appear as a custom related list on page layouts for the other object. See the Salesforce online help for details.
Child row not automatically deleted when a parent row is deleted
No inherited sharing.
25 lookup relation relationships allowed per object.
Lookup field on child not necessarily required.To create a many-to-many relationship, simply create a custom junction object with two master-detail relationship fields, each linking to the objects you want to relate. See the Salesforce online help for details. … Unlike master-detail fields, lookup fields are not automatically required.
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A Lookup relationship consists of searching value of a field based upon the value in another field in another object. It is commonly used in the case of shared data between the two objects.
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