How long does it take to reduce bullwhip in an industrial network?

Most teams see a measurable drop in inventory and a service-level recovery within six to twelve months of moving to probabilistic, multi-tier planning. The first quarter goes to data sharing setup (point-of-sale exchange, call-off integration), the second to model calibration on one product family, the rest to scaling across the network. Flowlity deployments typically run a few weeks to a few months end-to-end depending on scope, and customers commonly report the bullwhip-driven inventory share dropping first, before forecast accuracy gains show up in the reporting.