SAP
To integrate the product platform with SAP you must have a license for Nintex K2 connect.
For information on Nintex K2 connect see the K2 Knowledge Center: Nintex K2 connect.
Nintex Automation (5.8) Installation and Configuration Guide
Nintex Automation K2 (5.8.1) is a short term support release and represent additional features and fixes on top of Nintex Automation K2 (5.8)