you have to create one little custom extension to redirect if product is not found in your database

here i have given working solution and its perfect worked for me

How to forward all the 404 Magento pages to the front page?

hope this will also work for you.

you have to create one little custom extension to redirect if product is not found in your database

here i have given working solution and its perfect worked for me

How to forward all the 404 Magento pages to the front page?

hope this will also work for you.