Install on Shopify

Sell everywhere. Oversell nowhere.

Buffers, per-channel limits and atomic stock math. If stock still goes negative anywhere, a critical alert fires immediately.

Install on Shopify See how sync works

Buffers, two ways.

Hold stock back from what channels see: a fixed quantity, or days of demand that follow how fast you actually sell.

Fixed buffer

Pick a quantity, and that many units stay home. Every channel sees your available stock minus the buffer, on a quiet Monday and on your busiest weekend alike.

  • A set quantity held back from what every channel sees.
  • Predictable. The buffer never moves unless you change it.

Velocity buffer

Set the buffer in days of demand instead of units. Ventorify computes it from your actual cross-channel sales velocity and forecast, so a faster week automatically holds more back.

  • Days of demand, not a guess in units.
  • Computed from real sales velocity across every channel, plus the forecast.
  • Configurable per channel. Each channel can carry its own buffer.

More than a buffer.

Hard ceilings per channel, stock math that serializes at the database, and a critical alert watching everywhere else.

Atomic stock math

Stock is decremented atomically at the database level. When two sales land in the same instant, the writes serialize into one correct number, and concurrent sales can never decrement stock below zero.

Per-channel max limits

Cap what a channel may show. Set a ceiling for Amazon or eBay and that channel never lists more than the cap, however high your available stock goes.

Oversell detection

If stock goes negative anywhere, an oversell alert fires at critical severity the moment it happens, and resolves itself once the count recovers.

Know the moment something needs you.

Seven alert types cover what actually goes wrong, delivered to your in-app inbox, with email and Slack routing on the Sync plan and up.

  • Out of stock
  • Low stock
  • Oversell detected
  • Sync error
  • Channel offline
  • Token expiry
  • Reconciliation discrepancy

Every alert is opt-in. You choose exactly what fires and where it goes.

Alerts that respect your attention.

An alert should mean something. The behavior that keeps it that way is built in.

  • Auto-resolve on recovery. Stock comes back, a channel reconnects, and the alert closes itself.
  • No ping-pong. Low stock uses hysteresis and cooldowns, so a count hovering at the threshold never spams you.
  • Bursts become one digest. When many alerts fire at once, they aggregate into a single message.
  • No back-firing. Enabling an alert never fires for products that were already low.
  • Opt-in, always. You choose exactly which alerts fire and where they go.

Protection from the Free plan up.

Basic protection ships free. The full system arrives with Sync.

Compare all plans

Free

$0 · 50 orders/month

Basic oversell protection and the safety alerts: out of stock, low stock and oversell detected, in-app only.

Sync and up

$29/mo · 500 orders/cycle

The full buffer system, fixed and velocity, and all seven alert types with email and Slack routing.

One source of truth. Every channel.

Start free with 50 orders a month. Every paid plan includes a 14-day trial, billed through Shopify.

Install on Shopify

Free plan available · no separate payment setup