Providing online non-downloadable software for connecting e-commerce merchants with multiple logistics providers to manage warehousing, post-purchase communications, and order fulfilment, namely, same-day delivery, curbside pickup, in-store pickup, and shipping; computer systems integration services for e-commerce order management and fulfilment; application service provider (ASP), namely, hosting digital platforms for logistics as a service; providing digital hosting platforms on the internet for logistics services; platform as a service (PAAS) featuring software that enables omnichannel delivery management for electronic commerce transactions