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thanks for the response..the sitemap is loaded in webmaster tools, and google says there are only a handful of errors (less than 25 and all look like 404 responses due to a page not existing).  Based on this, it sounds like all is okay right?

I recently spoke to a consultant at a search conference who took a look at my site map and mentioned it looked like google would have a hard time crawling the site and indexing new pages and changes.  I am managing an ecommerce site with a bunch of products, however, I am not an XML expert by any means so i'd appreciate any advice on what to look for in the site map that would possibly be affecting googles ability to crawl/index.

thanks for the response..the sitemap is loaded in webmaster tools, and google says there are only a handful of errors (less than 25 and all look like 404 responses due to a page not existing).  Based on this, it sounds like all is okay right?