Universal property identifiers for bulk mailing

A non-transitory computer-readable memory medium comprising program instructions which, when executed by a processor, cause a computer system to:

• display a graphical user interface (GUI) on a display, wherein the GUI is configured to receive first user input and second user input;
• responsive to the first user input, by the processor:
• upload an addressee data file, wherein the addressee data file comprises a plurality of entries in a plurality of rows and a plurality of columns, wherein the entries comprise strings of text;
• identify a first city and a first state associated with the addressee data file;
• identify a first row in the addressee data file comprising the first city and the first state;
• extract a first street address from the first row;
• identify, in a second data file, a first universal property identifier (UPI) associated with the first city, the first state, and the first street address;
• identify a first column in the addressee data file that contains the first UPI;
• extract distinct entries in the first column to form a UPI list of a plurality of UPIs;
• and
• determine, from the second data file, a plurality of destination addresses, wherein each destination address of the plurality of destination addresses is associated with a respective UPI of the plurality of UPIs;
• and
• responsive to the second user input, transmit, from the processor over a transmission path to a printing processor of a printing device, printing instructions for printing the respective destination addresses associated with each of the plurality of UPIs onto respective ones of the plurality of postage items.

An apparatus, comprising:

• a processor configured to execute instructions to:
• display a graphical user interface (GUI) on a display, wherein the GUI is configured to receive first user input and second user input;
• responsive to the first user input, by the processor:
• upload an addressee data file, wherein the addressee data file comprises a plurality of entries in a plurality of rows and a plurality of columns, wherein the entries comprise strings of text;
• identify a first city and a first state associated with the addressee data file;
• identify a first row in the addressee data file comprising the first city and the first state;
• extract a first street address from the first row;
• identify, in a second data file, a first universal property identifier (UPI) associated with the first city, the first state, and the first street address;
• identify a first column in the addressee data file that contains the first UPI;
• extract distinct entries in the first column to form a UPI list of a plurality of UPIs;
• and
• determine, from the second data file, a plurality of destination addresses, wherein each destination address of the plurality of destination addresses is associated with a respective UPI of the plurality of UPIs;
• and
• responsive to the second user input, transmit, from the processor over a transmission path to a printing processor of a printing device, printing instructions for printing the respective destination addresses associated with each of the plurality of UPIs onto respective ones of the plurality of postage items.