BigLynx Pick and Pack is a wave picking process in a warehouse management system (WMS) to support organizing of the daily flow of work of a warehouse or distribution center part complementing BigLynx Proximity retailing Broadcast & Fulfiller product. BigLynx fulfillment optimization recommends Pick N Pack mobile app for maximum productivity in wave pick operations. Wave picking is an application of short-interval-scheduling. Managers, using the WMS, assign groups of orders into short intervals called "waves", to initially simulate the flow for the day, consistent with the order departure plan and available labor. When the plan is satisfactory, it is accepted. The WMS then releases the waves to the warehouse sequentially throughout the day, to allow managers to coordinate the several parallel and sequential activities required to complete the daily work. Mobile app includes 3 key steps which are replenishment, picking and packing for ready to load for fulfillers.