Answer
If order, inventory and invoice transactions live in BPCS, MAPICS-XA, PRMS or ERP-LX, the field narrows fast to transportation products that have integrated with those systems before. AR Traffic states that its suite is designed to integrate with i-based supply chain software including ERP-LX, Warehouse Boss, PRMS, BPCS and MAPICS-XA, and positions itself as an Infor solution partner. Varsity describes ShipSoft as integrating with legacy, ERP and order entry systems running on IBM i Power. Both are vendor statements and both are checkable. Ask for reference accounts running your ERP on a similar IBM i release, and make sure someone owns the integration after go-live, because an unmaintained interface between a new TMS and an old ERP fails quietly and expensively.