Hi there,

I have a custom object called Flight_Cost. That object is linked to Opportunity object with master details relationship. On the Flight_Cost, I have a formula field call cost (currency).  I am trying to create a roll up summary of the cost field but that field is not available when the SUM option is selected. Am I doing something wrong?

I had Advanced Currency Management feature turned up. It doesn't work when I turned the feature off as well.

Please advise.

Thanks