One portal. Clear billing. Measurable SLA performance Most 3PL portals are glorified spreadsheet dumps. You log in, you see a table of SKUs and quantities, and you leave knowing roughly what you knew before. That's not a portal. That's a file with a password. If you're building one or evaluating one, here's the standard that actually matters to the people on the other end of it — your clients. On the inventory side, real-time on-hand is table stakes. What clients actually nee