Rounding Invoice Total Due Amount to the Nearest Decimal
We are using WHMCS in Japan, a country which the currency does not have decimal points (eg. USD8.99 vs. JPY899).
Generally sales tax is 8%, but with some certain numbers when we calculate the tax in, it results in decimals (eg. JPY660+tax is technically JPY712.8). What we want to do then is we round the decimal down and make it JPY712 (or round up and make it JPY713), since there is no such thing as a "cents (0.01)" in Japanese yen. WHMCS appears to not do so, and it attempts to charge clients for a technically impossible amount.
Currently we take care of this error manually, but I think it would be nice if WHMCS could add a function to round the final total amount due of an order round up or down to a certain level. This would take care of our tax issues, and I can see this potentially being useful for other purposes as well.