The 4 Categories to Calculate ROI Customer Support Savings = Hours Saved Monthly x Average Hourly Warehouse Worker Wage If you are using a WMS, like 3PL Warehouse Manager, with customer portals and automated customer notifications, warehouse employees no longer spend time communicating with customers outside of special circumstances. For the example calculations below, we show implementing a WMS to save 2 hours daily in customer support, bringing the total time spent on customer communications to 1 hour each day instead of 3. extensiv.com | 833.983.6748 10