Hi,

I am working on rollup summary on opportunity but it doesn't allow master relationship with my custom object.

So, i created a look up realtionship with opportunity but now i need Apex triggers to create a relationship.

So, can anyone help me in this.

my custom object is :-   vik__productitem__c

my field which have look up with opportunity :-  vik__Opportunity__c

my field in opportunity with rollup summary :-  vik__products__c

please help me to overcome this problem

Thanks in advance.