Optimization of sortation order receptacle filling

A system for use in directing a sorting operation, the system comprising:

• a server comprising a memory, a processor, and a receptacle assignment engine;
• a chamber bank for use in a sorting operation comprising a plurality of chambers configured for receiving a receptacle therein, each chamber defined by a floor, a left wall, a right wall, and a rear wall that together define a receiving space for a receptacle, wherein top ends of the left wall, the right wall, and the rear wall define an uncovered top opening of the chamber for receiving articles to be sorted therethrough as the articles are deposited into the receptacle, wherein front facing free ends of the left wall, the right wall, and the floor define an uncovered front opening of the chamber for receiving the receptacle therethrough, wherein the floor of the chamber is defined by a base surface of the chamber bank;
• and
• an automated transport vehicle traveling on a platform for transporting and depositing the articles to be sorted into receptacles;
• wherein the system is configured to direct the automated transport vehicle to transport and deposit a first number of articles into a first receptacle through the uncovered top opening of the chamber,
• wherein the system is configured to assign the first number of articles occupying a first volume to be sorted into a first receptacle such that the first number of articles stack up to extend above a top rim of the first receptacle to thereby overfill the first receptacle when all of the first number of articles are deposited thereinto.