What does electronic shipping info received mean?

Answer 1

Means that USPS has gotten the alert that a package is to be shipped. Meaning that they will eventually receive the package and have it shipped either to you, or your receiver. Once they seize the package they will immediately do the scanning process, which the package will then be violently tossed like a boomerang into a vehicle (whether it be a truck, an airplane or a dinky little USPS truck), and then they will begin a world tour to your destination. :)

yay.

Answer 2

It basically means that the shipper has created the electronic label for shipment. If there is no further information, then chances are the item has not actually been given to the carrier yet.