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Sid LightningSid Lightning 

AutoFill Child Lookup From Parent Lookup

Hi,

I have a lookup on both case and case line item

While backend uploading of Order Line items , Order lookup is required.

Howevr, what I require on front end is, whenever a case is created, and whenever we try to create a line item against the case object, 

it should copy the lookup value of order from parent to child, so that user can easily select order line item on which the case needs to be raised