How set a timelimit to post pay a order

-- url of the page with the problem -- : mywebsite.com/mypage
-- HikaShop version -- : 2.2.2
-- Joomla version -- : 3.1.5
-- PHP version -- : x.x.x
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : Error_message

In my Orders View i can display a button to pay later but how i can set a time limit for the customer can pay
example i have a product in stock for only 2 days i need be able set he can pay only 2 days after this the order should be canceld automatic.

You can use the "Hikashop Orders Automatic Cancel Plugin" plugin for that. You can configure it via the joomla plugins manager.
You'll have first to configure your cron task so that the plugin can do its magic:
www.hikashop.com/support/documentation/5...ashop-cron-task.html