The WebShop REST API documentation depends on the used version:
This document refers to different versions of the WebShop REST API for storefront development.
The WebShop REST API is intended for developers who want to make use of an easy-to-use API when developing front end solutions.
Starting with ICM 7.10 our REST API is provided in the Open API 3.0 format, see Reference - WebShop REST API 7.10.
The information provided in the Knowledge Base may not be applicable to all systems and situations. Intershop Communications will not be liable to any party for any direct or indirect damages resulting from the use of the Customer Support section of the Intershop Corporate Web site, including, without limitation, any lost profits, business interruption, loss of programs or other data on your information handling system.