Module: Historial de stock

The stock history is the auditable record of every change in product inventory. It's used to answer questions like "who lowered the hamburger stock last Friday?" or "how many units of coffee have we sold this month?".

What is recorded

Each movement stores:

Data	What it's for
Producto o adición	Which one was adjusted. Toppings also go in the ledger.
Delta	The change applied: +5 (entry) or −3 (exit).
Stock resultante	How much was left after the adjustment.
Tipo	Why it moved: Venta, Ajuste manual, Vencimiento, Robo, Merma, Daño, Conteo, Devolución, Corrección. This is what allows filtering and grouping.
Motivo	Free descriptive text.
Notas	Long detail, when the movement is a shrinkage.
Valor	Unit and total cost, when the product has a cost entered.
Usuario	Who made the adjustment (name + email).
Fecha y hora	When it was made.

What generates a movement

Each of these events creates a new row:

Event	Recorded type
Payment of an order	Venta
Editing a product that changed the stock	Ajuste manual
Manual adjustment from the "Ajustar stock" button	Ajuste manual
Conteo de inventario applied	Conteo
Merma registrada	Vencimiento, Robo, Merma or Daño
Reversal of a merma	Devolución

The type is what can be queried (the history and reports filter by it); the reason is the text label that used to be written, and it is kept.

Voiding does NOT restore

When an order is voided (status Anulado), the stock does NOT automatically come back. It's the team's decision: if there was real shrinkage, leave it; if it was a mistake, adjust manually with the reason "Corrección manual".

To automatically restore stock when canceling an order, you have to delete the order (an action only for Dueño / Administrador) instead of voiding it.

What it looks like

The history is accessed from Inventario → Movimientos, and can be filtered by category from the selector on the same screen.

You'll see:

• Summary at the top: total movements, entries (+) and exits (−).
• Paginated list (50 per page) with each adjustment and all its data.
• Category filter in the list header, to limit the history to the products of a single section.

What to use it for

• Audit — who lowered the stock and when.
• Detecting shrinkage — if the "exits" don't match actual sales, there are losses to investigate. Declared mermas come out with their own type and reason; what the count detects comes out as "Conteo".
• Physical counts — when taking inventory, the movement with type "Conteo" makes it clear it's a check correction, not a sale.
• Purchases — when loading merchandise, the reason "Compra a distribuidor" makes it easier later to cross-check with supplier invoices.
• Valuing the loss — if the product has a purchase cost entered, each movement stores the value. Without a cost, the shrinkage is counted in units.

Who uses this module

Role	What they can do
Dueño	View the full history. Make adjustments with a reason.
Administrador	Same as Dueño.
Trabajador	View the full history. Make adjustments with a reason (typically end-of-day counts).
Cajero	View the history and record mermas, expirations and damages (note required). Can't record thefts or reverse.
Cliente	No access.

Related pages

• Module: Conteo de inventario — count the whole catalog at once and apply the differences.
• Module: Mermas — declare losses, thefts and expirations.
• Module: Productos — conceptual reference for the catalog and stock.