This must have been asked before, but here goes
A Service Activity has a 1:N relationship with custom entity new_servicecostline. Multiple cost lines add up to a total cost for the Service Activity. A rollup field calculates this fine
However, I now want to create a rollup field in the parent Case entity to total all the Service Activity total costs. I then need the Contract entity to rollup all the case totals. Four generations of rollups.
Is there any way of doing this using rollup / calculated fields?
Question everything