Amazon search will stop working in previous and current versions of Tellico on or after March 9, 2020. Tellico has been using their Product Advertising API v4, and they’re going to shutdown v4 down in favor of v5. There’s a FAQ about the change and a general information page.
I’ve been working on updating Tellico to use the new API. It’s been challenging since I don’t actually have much access to it with Amazon throttling usage depending on how many sales are made using tracking numbers. I’m basing the new code primarily from the documentation and examples which, as any programmer might tell you, is rather dangerous. 🙂