I have up to 20 million unique pages, and so far I've only submitted about 30k of them on my sitemap.
We had a few load related errors during googles initial visits, and it thought some were duplicates, but we fixed all that. We haven't gotten a crawl related error for 2 weeks now.
Google appears to be indexing fewer and fewer urls every time it visits. Any ideas why? I am not sure how to get all our pages indexed if its going to operate like this... love some help thanks!