Crawl errors and url parameters


I have a big problem with google crawl errors. A good part of my products are changeing every year, new models . Is there a way when i deactivate a product to make an auto redirect to home page , or maybe to product category ?

Can someone advice me wich of next parameters should be monitored by google and wich not ?
















canonical url addon from cs cart rocks would work for the changing products. When you disable the old product enter the new url and it will automatically 301.

Be careful re directing too many 404 urls to home page…google doesnt like it


Thanks for the recommendation John. And for jalnicu, here is a quick link to our canonical url addon: CS-Cart SEO Ultimate: Canonical URL + Google Rich Snippets + SEO Name History + More