Repeat Customer - indicator

would be cool if a repeat customer could be highlighted or given a special icon or something like that so that staff knows that this is a repeat customer

thanks

If registered, customer is already a repeat after "first freebee" that way. On the other hand, repeats get better service, are taken out of turn, or what? How well would that work out in a line for hamburgers or postage or your own banking access? The bucks are alike, the customers are alike. If you're buying your very tenth newly minted Bentley you will probably not suffer the hyperactivity of buying your very first, and you'll likely assume that the guy doing the latter would be given more attention so that he would not raise even a quiet ruckus showing that he is too new at it to display the properly extreme aplomb, over what is merely after all a Bentley, old chap. If you're buying your 100th can of dog food, the store won't care that the guy ahead of you is buying his 4th; provided those are for your dogs; outside.

sometimes a customer needs something out of the ordinary for shipping or whatever and having a repeat customer creates a bit of confidence in tweaking a shipping need, it's surprising but you get to know your customers, especially your repeat customers, over the years

plus, there could be some sort of repeat customer discount perhaps

Yes, but by then you and staff will recognize them without automation. Most customers will probably not hesitate to tell you out front that after . . . of loyal customerhood, now for the first time . . . is needed for happy camping. Most won't worry about it in ordinary ordering. Most will appreciate and read discount e-mail so long as it does not seem spammy or trivial.

To answer the original question for the sake of automation that stays out of the way, an order and invoice numbering that increments so as to show the extent of customers' own happy camping would do the trick, and could easily be complex enough to show, for example, date-phone-postcode-initials-historycount (or for some specific machine-related uses, date_phone_postcode_initials_historycount). An extreme would be to send out plastic HBP (House Brownie Point) cards for purchase discounts and e-mail for more discounts just as the chained local OfficeXyzabc and AbcxyzPharmacy stores do, but at very scant gain overall even for them in numbers and margins. Key fobs, ballpoint pens, and ad calendars don't work well any more, and among electronic counterparts, neither do information popups and toolbars.