An accessing unit comprising: - a receiver adapted communicate with a server to receive an unloading location of each of one or more items ; - a location unit adapted to determine a current location of a container using a global positioning system (GPS); - a determination unit adapted to: determine an angle of arrival and/or an angle of departure based on a signal from the one or more items ; and determine an inward movement or an outward movement of the one or more items based on the angle of arrival and/or the angle of departure of each of the one or more items inside the container ; and - a transmitter adapted to transmit a message to a device based on the current location of the container , the unloading location and the movement of the one or more items ; wherein the message comprises: an alert message transmitted to the device when the current location is different from the unloading location and the one or more items is in the outward movement; or a confirmation message transmitted to the device when the current location and the unloading location are same and the one or more items is in the outward movement; or a reminder message transmitted to the device when the current location and the unloading location are same and the one or more items are not moved outside the container . - a receiver adapted communicate with a server to receive an unloading location of each of one or more items ; - a location unit adapted to determine a current location of a container using a global positioning system (GPS); - a determination unit adapted to: determine an angle of arrival and/or an angle of departure based on a signal from the one or more items ; and determine an inward movement or an outward movement of the one or more items based on the angle of arrival and/or the angle of departure of each of the one or more items inside the container ; and determine an angle of arrival and/or an angle of departure based on a signal from the one or more items ; and determine an inward movement or an outward movement of the one or more items based on the angle of arrival and/or the angle of departure of each of the one or more items inside the container ; and - a transmitter adapted to transmit a message to a device based on the current location of the container , the unloading location and the movement of the one or more items ; wherein the message comprises: an alert message transmitted to the device when the current location is different from the unloading location and the one or more items is in the outward movement; or a confirmation message transmitted to the device when the current location and the unloading location are same and the one or more items is in the outward movement; or a reminder message transmitted to the device when the current location and the unloading location are same and the one or more items are not moved outside the container . an alert message transmitted to the device when the current location is different from the unloading location and the one or more items is in the outward movement; or a confirmation message transmitted to the device when the current location and the unloading location are same and the one or more items is in the outward movement; or a reminder message transmitted to the device when the current location and the unloading location are same and the one or more items are not moved outside the container . <EOS>