Six planned surfaces, each with the specific problem it solves at a real school store counter. Every one is labeled Planned · not built.
Planned · not built
Shelf inventory — SKU, count, reorder point, per storage location
Every item the store carries gets one SKU record: spirit-wear size run, concession case count, book-fair title, or supply-closet consumable. Each SKU carries an on-hand count, a reorder point, and the physical location it lives in (front shelf, storeroom shelf 3, concession trailer). Counting down to zero at a shelf does not require touching a keyboard mid-sale — the plan is a scan-and-decrement flow at the counter, not a spreadsheet reconciled after the fact. Planned; not built today.
Planned · not built
Counter mode for a game, a fair, or a pop-up table — tally sales, not cards
At a concession stand, a booster table at a game, or a book-fair aisle, staff mark each sale against the SKU it drew from — a tally of WHAT SOLD, decrementing the same shelf-inventory count above, so a Friday-night sellout shows up as an empty shelf record Monday morning instead of a surprise at the next physical count. Tender itself (cash, check, the school's own existing card terminal) stays entirely the school's own process — this surface never touches a card number and never routes a payment. Planned; not built today.
Planned · not built
Reorder alerts — a threshold per SKU, not a guess at the storeroom door
Each SKU carries its own reorder point (a size-run of spirit wear reorders differently than a case of concession candy). When on-hand crosses the threshold the item surfaces on a reorder list for the store manager to act on — the plan places it on a list a human reviews, it does not auto-place a purchase order or move money anywhere. Planned; not built today.
Planned · not built
Multiple sale points — front counter, concession trailer, pop-up table, one shared count
A school store rarely sells from one counter: a front counter during the school day, a concession trailer on game night, a folding table at the book fair. Each is planned as its own sale point pulling against the SAME shelf-inventory record, so a shirt sold at the game and a shirt sold at the front counter the next morning decrement one true count instead of two disagreeing spreadsheets. Planned; not built today.
Planned · not built
End-of-event reconciliation — tally vs. physical count, discrepancy flagged
After a game or fair closes, the plan is a close-out screen: what the counter tally says sold, against a physical recount of the shelf or trailer. A mismatch is FLAGGED for a human to resolve — shrinkage, a miscount, a comped item — never silently written off or auto-adjusted. Planned; not built today.
Planned · not built
Booster-club & PTO handoff — one inventory, whoever is staffing the table
A booster club running the concession stand and school staff running the front counter are planned to share the same SKU list and on-hand counts rather than keeping two, so a case of water moved from the storeroom to the trailer shows up decremented in both places at once. No student roster or purchaser identity is required for this handoff — it is inventory-to-inventory, not person-to-person. Planned; not built today.