Can we create master-detail relationship with user object?
You can definitely create a master- detail relation between user and custom object (Emp). In this relationship, User has to be Master and Custom Object needs to be the detail Object.
Can you convert a master-detail relationship to a lookup?
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.
How many relationships can an object have in Salesforce?
As a best practice, don’t exceed 10,000 child records for a master-detail relationship. Each custom object can have up to two master-detail relationships and up to 25 total relationships.
What’s the difference between lookup and master detail?
Deleting parent automatically deletes child. A child of one master detail relationship cannot be the parent of another. Lookup field on page layout is required. other difference is, you can’t create a rollup summary field on Lookup Relationship. it is only available on Master-Detail relationship.
Can a detail be created on a master record?
In which Master represents Parent and detail represents Child. If Parent is deleted then Child also gets deleted. Rollup summary fields can only be created on Master records which will calculate the SUM, AVG, MIN of the Child records.
Do you need a parent Field in master detail?
Parent is not a required field. No impact on a security and access. No impact on deletion. Can be multiple layers deep. Lookup field is not required. What is “Master-Detail Relationship”?
What is ” master-detail relationship ” in Salesforce?
What is “Master-Detail Relationship”? Master Detail relationship is the Parent child relationship. In which Master represents Parent and detail represents Child. If Parent is deleted then Child also gets deleted.