Hello Liina,

only documentation that i know exists (written down) are

https://partners.hansaworld.com/restapi-docs

http://www.hansamanuals.com/main/mailnumber___61173/theconf___1145/shortcode___HW0801TECH_REST_API/hwconvindex.htm

https://hansaworld-web.s3.amazonaws.com/university/university/Webinars/2018/HW%20web%20api%20and%20Oauth2%20with%20standard-id.mp4

https://hansaworld-web.s3.amazonaws.com/university/university/Webinars/2017/Rest%20API.mp4

Br, Bror-Erik