Call external API once the stock level updated

[@Michael Telgmann](http://forum.shopware.com/profile/17553/Michael Telgmann „Michael Telgmann“)‍ I have created a plugin as per above document. Plugin created and active. Show in the backend as expected. I have tried lots of way but can’t get ride out this.

 

I can’t get an event which allow me call extenal API.