BAT - It is impossible to catch absolutely everything when you have multiple branch offices. Establish the target amount you are trying to reach and then determine the resources it will need for you to meet the goal. For example, if you decide that you want to aggregate every item of $3000 or more, you could: utilize teller system parameters to capture conductors on each cash in/out for $3000-$10,000 (if available); you could create a daily report (or shared spreadsheet) to capture info on conductors of transactions between $3000-$10,000 and aggregate in the back office.
I've seen it done a number of different ways. You have to decide where your breakpoint is going to be and what it is worth to you in man-hours to reach that goal. I've seen aggregation amounts set as low as $500 for manual tracking. Personally, I think that is ridiculous.
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Life without Jesus is like an unsharpened pencil - it has no point.