Method and system for access to a secured building

A non-transitory computer-readable medium storing instructions that when executed by one or more processors of a device cause the one or more processors to perform operations comprising:

• receiving, by an entry console of the building or portion thereof, a request for entry into the building or portion thereof, wherein the request comprises a tracking code associated with the package;
• forwarding, by the entry console, the tracking code to a building operating system (BOS);
• performing, by the BOS, a verification procedure based on the tracking code;
• the verification procedure comprising:
• sending, by the BOS, a verification request comprising the tracking code to one or more databases, wherein the one or more databases comprise tracking information for a plurality of packages and delivery status of each package in the plurality of packages;
• failing, by the BOS, to retrieve a delivery status of the package;
• instructing, by the BOS, a carrier server cloud (CSC) to retrieve the delivery status of the package by tracking a location of a delivery vehicle designated to deliver the package, in response to failing to retrieve the delivery status of the package;
• comparing the tracking code in the verification request to the tracking information in the one or more databases;
• determining that access is permitted based on the comparison and the tracking information in the one or more databases confirming that delivery address of the package is in the building and the delivery status of the package is out for delivery determined based on the location of the delivery vehicle designated to deliver the package;
• causing, by the BOS, the entry console to open a door in response to an outcome of the verification procedure being positive, wherein the outcome of the verification procedure is positive based on the determination that the access is permitted.