I made a custom component for monitoring the in-store availability of selected IKEA products. I mainly use it to monitor often sold out Trådfri gadgets that I want to get my hands on, like the outlet and range extender. Add a couple of sensors and have an automation send you a notification once the product(s) are in stock. Maybe useful for others as well?
I’m using an undocumented XML-based API available at the IKEA website (for most countries anyway), this can of course change as soon as IKEA changes the API, rendering the sensors non-functional.
Example: