Forum Post: Aggregating field data using an N:N relationship as a basis (rollup fields do not work)

Dear Microsoft Community, I would like to take this time to ask a pressing question. We are in the middle of creating a process with Microsoft Dynamics that will enable us to associate opportunities with feature requests (using a solution from xRM1 called Idea Management). We need to be able to track the total weighted revenue associated with a particular Idea. Each Idea (product feature request) can have multiple opportunities that it helps close, and each opportunity can have multiple Ideas that are needed to help push that opportunity to close. As such, an N:N relationship was created an a 1:N relationship is impossible. We looked at rollup fields, which worked great until we tried to associate an opportunity with more than one feature request (Idea). That made this avenue a non-starter. Since rollup fields didn't work, we still need a way to add up the total revenue for all opportunities associated with each idea. Do any of you know how to add up all of the revenue for each opportunity that is in a relationship with another entity? It doesn't matter if its easy or if it needs a custom SQL statement that feeds into another custom field. We don't really care, but this needs to work. Thank you for your time and assistance. Best Regards, Eric