products not showing up in magento frontend

I am facing a problem in magento store, when any new customer group is added by admin site and if it is assigned to customer, for that particular customer no product showing, the page displaying like "There are no products matching the selection." Please suggest me how this problem can resolved? or why this is arising? 开发者_如何学PythonThanks!

The solution I got by

click on promotion->catalog price rule->apply rule

This is some how related with Indexing. and group or any rule created on that group will get apply on front end successfully.

Check this link. I got my imported products shown up by disabling all and then enabling all again.

http://www.aschroder.com/2010/07/why-are-my-magento-products-not-showing-up/