Although having a functioning omnichannel fulfillment program is now a basic necessity, many retailers still fail to meet customer expectations. They also struggle to fully understand program profitability. Digital business pros who lead omnichannel fulfillment initiatives need to move from implementing to optimizing their programs. This report provides digital business leaders with best practices on how to operate a successful omnichannel fulfillment program today and in the future. This is an update of a previously published report; Forrester reviews and revises it periodically for continued relevance and accuracy.