Thanks for reaching out!
I'm sorry that we don't have this kind of settings to notify you when a product has a stock. Octoparse's major function is to scrape web data available on the websites, and then extract the data to format to prefer.
As for Amazon, we can scrape data from Amazon. If you have a list of products to scrape, then Octoparse can help with that.
Let me know if I can help further.
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