[Solved]Invoice and order numbers

-- HikaShop version -- : HikaShop Business 2.3.3
-- Joomla version -- : 3.3.6
-- PHP version -- : 5.4.30
-- Browser(s) name and version -- : Firefox 32

Hello Hika team,

how can i change the invoice number generattion to llok like 14H XXXX

and the order number to look like 14HB XXXX

where XXXX should be generated automatic by the shop

thx

andreas