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Mehdi BadriMehdi Badri 

I want to create a roll-up summary field from payment (custom object) to campaign object the field is total Payment .All payments are related by a lookup field to a campaign I want to create a trigger for this can anyone help me?

Best Answer chosen by Mehdi Badri
Shubham4462Shubham4462
Hello Mehdi ,

I think go to this link here you can find the solution for your query
https://developer.salesforce.com/forums/?id=906F0000000g0q1IAA
https://success.salesforce.com/answers?id=90630000000476cAAA



Thanx regards 
Shubham,

All Answers

Shubham4462Shubham4462
Hello Mehdi ,

I think go to this link here you can find the solution for your query
https://developer.salesforce.com/forums/?id=906F0000000g0q1IAA
https://success.salesforce.com/answers?id=90630000000476cAAA



Thanx regards 
Shubham,
This was selected as the best answer
Mehdi BadriMehdi Badri
Thanks
Shubham4462Shubham4462
Mehndi please mark it as a solved please ....... it makes our community clean