- When? How? and Why? - Which conditions need to be meet? - When you are editing the record? - When you are viewing the record? - When you save the record? - When you click a Button on the Record? - When the record is transformed to Wolf? If you describe what you are trying to do exactly maybe there is a different or better way to do it...

When a Timesheet or individual timeentry is Submitted for approval or pending approval, I’m looking to write values from the timebill sublist to Timesheet. This way when we process it for Payroll, we can calculate overtime, and additional hours that they need to be paid. - Timesheet on ‘pending approval’ or ‘approved’ and customfield ‘paid’ checked. - when record is being submitted or approved [SAVED] is when the rollup needs to be calculated.