System and method for efficiently determining and displaying optimal packages of data items

A computer-implemented method performed by a computing device comprising one or more hardware computer processors, the method comprising:

• retrieving, by an item aggregation engine of an item packaging system through a network, one or more data items from a user data store, wherein the user data store comprises a database of available inventory;
• retrieving, by the item aggregation engine through the network, one or more data items from an entity data store, wherein the entity data store comprises a database storing historical data item packages associated with one or more entities;
• receiving, by the item aggregation engine through the network, a first constraint, a second constraint, and a third constraint from a user device associated with a user;
• parsing, by the item aggregation engine, the received constraints to determine that the first constraint is less flexible than the second constraint;
• identifying, by the item aggregation engine, a first data unit from a plurality of data units that satisfies the first constraint;
• identifying, by the item aggregation engine, a first set of data units from the plurality of data units that satisfies the second constraint and is within a tolerance level associated with the second constraint or exceeds a minimum requirement of the second constraint;
• identifying, by the item aggregation engine, a second set of data units from the first set of data units that matches the third constraint or exceeds a minimum requirement of the third constraint;
• determining, by the item aggregation engine, one or more alternate data item packages in parallel based on different tolerance levels distinct from the tolerance level associated with the second constraint;
• transmitting, by a recommendation engine of the item packaging system, instructions to a user device to display, in a first window of a user interface, a graphical summary of a data item package;
• and
• displaying, in a second window that overlaps the first window, a recommendation for changing the tolerance level of the second constraint to a different tolerance level associated with one of the alternate data item packages, wherein the recommended change increases a value of the data item package.