The Retain.me DC API enables the end user to action any orders post gateway consumption, thus enabling "Print", "Reprint" and "Cancelling" This data should be pushed after SMARTSLIP® Composition, thus allowing the distribution center to fully control SMARTSLIP® flow
If you know what you're building and know how to use the Retain.me DC API, this reference should be your go-to resource.
API Versions/Reference