Before you choose an eCommerce platform, you will want to make sure it can integrate with your existing POS system (assuming you have one and are happy with it). This can save you a lot of trouble in the long run when it comes to inventory management across channels. Setting up your POS system to integrate with your eCommerce platform will depend on the solutions you’re using. It may be an easy self-service task or you may require support from a customer service representative.