Postal Code Formatting

-- HikaShop version -- : 3.5.1
-- Joomla version -- : 3.9.18

Hello,

We are using the Canada Post Advanced plugin for shipping.

When someone enters the postal code in the following format (X0X0X0), the transaction processes correctly and includs the tax and shipping rate.

However, it is common in Canada for the postal code to use the following format (X0X 0X0) with a space between the third and forth characters. When this occurs, the order processes however the taxes and shipping are not added to the purchase.

Is there a way for the shipping plugin to accept either format? and or how can the postal code format field force a correct input?

Thanks.

Further to this. It appears that we have established a regular expression check with the correct formatting, however one recent purchase had the X0X 0X0 formatted postal code. We don't know how this could have occurred as we can not re-create the use of a postal code that doesn't meet the correct version.

Further to this. I was unable to re-create the incorrect input of the postal code. So I did some digging. A couple of years ago (2018) we added the regular expression to deal with this issue, as the Canada Post plugin wouldn't function properly without the correct formatting. It appears that the issue at hand is a result of someone registering to the site using the incorrect postal code formatting prior to our regular expression configuration. That person hadn't ordered another product since the time they registered in early 2017.