Korber Warehouse Edge (formerly from HighJump, and before that the AccellosOne WMS) is a warehouse management system. HighJump was the company formed from the July 2014 merger of Accellos and HighJump Software. It has since rebranded to Korber, which is HighJump's parent company.
Korber Warehouse Edge (formerly HighJump / AccellosOne) is a warehouse management software with one purpose. It does what it should. Sage X3 is a ERP system that integrates shipping but misses some of the warehouse management components.