High level of 404 client errors

[Louise99]

My clients website is an e-commerce based website, where customers can go on and buy products etc from the website. I placed the website onto seomoz and it cam eback with something like 18,000 errors, mostly 404 client errors, when I checked to see what the URL was from, it was a summary of an order to a client who just purchased something from the website, this was the case for alot of the errors.

So i am wondering, will this harm the site's optimisation or any other part of it? and how can I get rid of these errors?

Many Thanks

Charlene

[anthonydnelson]

Hi Charlene-

It sounds like the pages that are delivering the 404 errors are not something you want to be crawled or indexed. Consider placing these pages in your robots.txt file or using rel noindex on them.

Be careful listening to my advice at the moment. I haven't seen your content on the discussed pages, so you need to be 100% sure about what you are doing before changing anything.