In the bustling trade networks of Faerûn, where merchant ships sail from Baldur’s Gate to Calimport and enchanted caravans roll through Silverymoon, the ability to track products with precision is a cornerstone of responsible commerce. The Waterdeep Trading Company (WDTC) has long understood that every item tells a story, and that story begins with its number—its mark of origin, identity, and journey.

Through a combination of batch and serial numbering strategies, the company ensures that eac...