Problem
Deleting K2 artifacts and uninstalling K2 for SharePoint from your environment removes them from SharePoint. You want to be sure that all SmartObjects, views, forms, and service instances are completely removed from the K2 environment, and that there are no orphaned artifacts.
Solution
Please refer to this article: https://help.nintex.com/en-us/k2five/userguide/5.6/Content/k2-for-sharepoint/removeartifactsintegrationsp.htm?tocpath=k2%20for%20sharepoint%7Cadminister%7C_____5#
Once you have removed K2 for SharePoint as per the steps above, the following leftover artifacts remain:K2 Management and System SmartObjects are visible in K2 DesignerK2 Management and System category folders are visible in K2 DesignerThe K2 for SharePoint Service Instance is visible in K2 ManagementThese artifacts are leftover by design and are not removed when following the steps above. To remove these artifacts contact Nintex Customer Central for assistance: https://customer.nintex.com/
