Headgate

Bottles, lots, and which one to open first

Enter the receipt once. It becomes stock on the shelf, lots with expiry dates, and an expense, in one go.

The inventory page: items such as Draxxin at 500 mL in the medicine cabinet, each showing what is on hand, where it lives, and which treatment-library product draws it down.
An item that is linked to a library product says so. Give that product at the chute and this number goes down.
Inventory on a phone: one card per item with the quantity on hand and plus and minus buttons for a quick count.
Plus one, minus one, while you are standing at the shelf.

Oldest lot goes first.

The vet supplier shipped two lots of Vira Shield on one invoice: one that runs out in March, one in November. Headgate keeps them apart. The first treatment given off that item came out of the March lot, and the record says so.

Nobody chose that. Nobody had to look at two boxes and work out which one was older. That is the whole feature.

  • Lot VS6-2451A, expires 31 Mar 2027, drawn down first
  • Held VS6-2604B, expires 30 Nov 2027, untouched
  • Written The lot number lands on every health record it treated
A posted purchase from Logan County Vet Supply, invoice 48812: two lines of Vira Shield on separate lots, one line of Draxxin and one of Safe-Guard, with a total and a Void Purchase control.
The receipt it all came from. Void reverses the stock and the expense together, and is blocked once the stock has been used.

One entry, three places

A purchase raises the quantity on hand, creates the lots with their expiry dates and unit costs, and files the expense against the right accounting treatment. There is no second screen where you tell the books what the barn already knows.

Expiry is a warning, not a footnote

Products that have gone out of date, or are about to, come up on the restrictions board under Pull from shelf. An out-of-date vaccine may not protect the animal you just put through the chute, which is a worse outcome than not vaccinating her.

Counts, and a record of counts

Adjust a quantity and it asks why: purchased, produced, used, fed, sold, reserved, or a correction. The history stays on the item, so a number that looks wrong can be traced back to the day it went wrong. Set a reorder level and the item flags itself low at or below it.