I created a brand new environment. I created a new entity called donations. I created a currency field in donations and then created several records with donation amounts in them. I created another entity called totals. I created a currency field in totals called totalOfDonations and made it a rollup field. When the popup opened there was no related entity so I went to customizations and created a relationship between the totals entity and the donations entity. Then I went back to the popup for the totalOfDonations field and was able to select the donations entity as the related entity which then meant that I could define a sum of donation records. I added all of these fields to my forms and created views that included them all. My problem is that when I created a record in the totals entity and then clicked the recalculate button nothing happened, it just showed zero rather than the total of the donations like I was hoping for. I would appreciate any tips, please.