Changes to ensure the long-term stability of Book Report July 2nd, 2015

Amazon has asked Book Report to stop accessing data older than 90 days.

Book Report makes a ton of requests to Amazon's servers. For each day of data it gathers, it needs to make one request for each of your books. So if you have 20 books, and you'd like 500 days of data, running Book Report will send 10,000 requests to Amazon. Book Report has over 1000 daily active users, so it's quite possible that this new feature resulted in literally millions of requests to Amazon's server. The normal KDP Sale Dashboard - the interface the that the servers were built to support - sends one request when you first load it, and one more each time you click "Update Report". Historical data is also likely more difficult for the servers to retrieve.

Basically, Book Report users are overwhelming Amazon's servers. And they're just that: Amazon's servers, so Book Report will be respecting their request and switching back to 90 days of historical data.

The new storage system implemented in the latest version of Book Report means that no one will lose access to data they've already collected. This also applies to new users - someone who uses it for the first time today will have access to 90 days of data, and a year from now they'll still have all of that data. I also recommend periodically downloading your data as a spreadsheet as an extra backup. There will soon be a feature that allows you to upload a spreadsheet if you want to change browsers or computers and bring your data with you.

I am now in contact with the technical team at KDP, and we will be working together to fix some of the issues both within Book Report, and caused by Book Report. This should result in a more stable platform, which will allow for more complex features to be added. You'll be able to learn more from your data than ever before. And if it's ever possible for Book Report to access old historical data again, it will.

Thank you all for supporting Book Report. It's grown larger than I ever thought it would - so large that Amazon noticed it. I'm going to continue working to make the best tool for learning from your data.

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