Salesforce Roll-Up Summary Trigger Revised
Why on earth would anybody want a Salesforce trigger to perform a roll-up summary type function when Salesforce already provides you with Roll-Up Summary fields? The answer may not be apparent until you begin to be inhibited by the limitations of Roll-Up Summary fields. So what are these limitations? Objects have a limit of 10 maximum roll-up summary fields Objects on the master side of a master-detail relationship can have roll-up summary fields Lookup relationships do not support roll-up summary fields Long text area, multi-select picklist, and system fields are not supported as filters or bases for roll-up summary fields Campaign
