Hi Biyat,
the documentation part you’re referring to seems to be out of date. We will update this ASAP.
The correct endpoint is;
POST dmn-rule/execute
Since you’re running the Flowable Rest app perhaps it will be helpful to make use of the Swagger UI.
From there you can see all the endpoints available and execute requests from the browser.
The Swagger UI is accessible on; http://server:port/flowable-rest/docs/.
Regards,
Yvo