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My child object already have 2 Master detail fields on it so I am unable to create 3rd one. I want functionality like Master detail. If user deletes any of parent record on parent object all the child records should be deleted.

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  • Cascade delete. It can be enabled if you contact salesforce -- help.salesforce.com/… – kurunve Apr 29 '20 at 16:43
  • I am creating a demo application in trailhead playground – Ansar Saeed Apr 29 '20 at 16:45
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A simple trigger will suffice

trigger MyTrigger on Parent__c (after delete) {
 delete [SELECT Id FROM Child__c WHERE ParentId__c = :Trigger.old];
}
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  • In delete event, Trigger.old is only available – kurunve Apr 29 '20 at 18:47
  • 1
    @kurunve - sheesh - epistemic arrogance on my part - fixed – cropredy Apr 29 '20 at 19:08

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