Mississippi POS Guide to Real-Time Patient Allotment Checks
https://wiki-cafe.win/index.php/How_Mississippi_Dispensaries_Can_Manage_Metrc_Item_Changes
Mississippi uses patient allotments measured in MMCEUs. Resident cardholders may obtain up to 24 MMCEUs in a rolling 30-day period, so staff need a reliable way to understand remaining allotment before completing a sale