| re: currency
Hi. Further to Linq's reply, there is another issue which you may not have considered; if you are dealing with Purchase Orders you need to consider the current exchange rate, which is of course different for the currencies mentioned.
Whilst this has nothing whatsoever to do with formatting, it has a very real impact on accounting for budgeted vs actual spend, where currency conversion will be essential.
For example, the Euro is currently trading at 0.791 GBP, the US dollar at 1.9625 and so on.
If you are recording only Euros and GBP you will also need to consider whether you need to take into account local rates of VAT which may be charged in other European countries that would invalidate the routine 17.5% standard / 5% low rate/ 0 % exempt rates applicable in the UK.
For these reasons I would suggest that you really need to hold a currency type table to establish for each transaction the currency involved, and to record the currency type as part of the purchase order - with GPB the default. Then you can apply custom formatting dependent on the currency, and include the exchange rate ruling on the transaction date concerned.
-Stewart
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