web pos retail pos magento pos pwa virtual assistant ecommerce transform augmented reality ar ecommere multi-device pos omnichannel point of sales pwa point of sales centralize magento 2.3 omnichannel-retail magento 2.3 omnichannel o2o retail centralized data centralized system web 3.0 web 4.0 headless-commerce high performance pos pwa pos data science retailer retail data analytic retail data science data warehouse big data hadoop retail assistant retail analytic sales analytic data mart
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