Using the Brite client and API in multiple countries is straightforward adaptation of the implementation. There are a few parameters that must be changed and front end work to be reviewed.
Mandatory parameters:
currency
currency_id
country_id
country_ids
amount – in EUR cents are supported but not in some local currencies like SEK.
Website Review:
Checkout Language & Text Checkout Logos
For consideration:
MerchantReference Callback URL’s