What is the maximum number of master detail relationships a detail record can have?

What is the maximum number of master detail relationships a detail record can have?

two master
Each custom object can have up to two master-detail relationships and many lookup relationships. Each relationship is included in the maximum number of custom fields allowed. You can convert a master-detail relationship to a lookup relationship as long as no roll-up summary fields exist on the master 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.

Can we delete master detail relationship on standard objects?

If you delete a ‘master-detail’ relationship, it will revert to a ‘lookup’ and you can expect the following repercussions: You cannot easily revert the field back to master-detail, unless all child objects have a specified parent. Child records will no longer be automatically deleted when the parent record is deleted.

Can we create master-detail relationship on standard objects?

You can define master-detail relationships between custom objects or between a custom object and a standard object. However, the standard object cannot be on the detail side of a relationship with a custom object. Its data can appear as a custom related list on page layouts for the other object.

Can you have a roll up summary field in case of master detail relationship?

You can create roll-up summary fields that automatically display a value on a master record based on the values of records in a detail record. These detail records must be directly related to the master through a master-detail relationship. You can perform different types of calculations with roll-up summary fields.

What happens if we delete master detail relationship?

If we delete record A (First Master detail relationship is always primary) – then child record c will be deleted. If we delete record B then in this case also child record C will be deleted. If we delete record c then only C will be deleted , master record will not be deleted.

Can a detail record be deleted from a master record?

Deleting a Master Record, deletes all the detail records. A detail record cannot be created without a Master record. The permission on the detail record cannot be set. It inherits the permission from the master record. The detail record also inherits the sharing rule from master records.

What happens to the detail record when either of…?

One Object can have only two Master-Detail relationships. If we delete record A (First Master detail relationship is always primary) – then child record c will be deleted. If we delete record B then in this case also child record C will be deleted.

How are the relationships maintained in Salesforce Master?

The relationships are maintained by using the Relationship Fields. It is a custom field which links one object record to another. Through the creation of relationships, we can display the data of all the related records in the record’s details page.