Multi Low Stock

How to detect orders draining multiple products to critical stock in WooCommerce

Flag orders where multiple products hit critical stock levels simultaneously

Badges orders where two or more products will have 2 or fewer units remaining after fulfilment, signalling a multi-product stock emergency that requires immediate reorder attention across several SKUs.

Stock warning
The problem

A single product running low is manageable. But when one order drains multiple products to critical levels simultaneously, the reorder workload multiplies and the risk of stockouts across your catalogue increases sharply. Without a dedicated flag, these compound stock events are easily missed.

The solution

OrderBadger can flag orders where multiple products simultaneously hit critical stock levels, alerting your team to a compound reorder situation.

Who this is for

Stores with diverse physical inventory where a single large or multi-product order can create cascading stock shortages. Especially useful for stores with long supplier lead times or seasonal restocking windows.

At a glance
Checks post-fulfilment stock levels per item Threshold: 2 or fewer units remaining Requires two or more products at critical stock Badge: Multi Low Stock (red) Category: stock management
People also search for
WooCommerce multiple products hitting low stock from one order how to flag compound stock emergencies in WooCommerce detect orders causing simultaneous stockouts WooCommerce WooCommerce multi-product critical inventory alert one order depleting several SKUs at once WooCommerce

How it works

Counts the number of line items in the order where stock remaining after fulfilment will be 2 or fewer units. If two or more products meet this condition, the order is badged with a warning and routed to the inbox.

Initiate reorder requests for all affected SKUs immediately. Review whether the products share a common supplier to consolidate the reorder into a single purchase order. Consider temporarily adjusting stock thresholds or enabling backorder status for the affected products.

Rule template

Plain English rule Two or more products in the order will have stock remaining of 2 or fewer units after this order

Write this (or something similar) in the OrderBadger rule builder. The AI compiler turns it into executable logic automatically.

Make it yours

Adjust thresholds
  • Raise '2 or fewer units' remaining to '5 or fewer' if your products have longer supplier lead times and you need earlier reorder warnings.
  • Change 'Two or more products' to 'Three or more products' to only trigger on the most severe multi-product stock events.
Add or remove conditions
  • Add 'and order total is over £200' to focus stock alerts on high-value orders where the compound stockout has the biggest revenue impact. …ll have stock remaining of 2 or fewer units after this order and order total is over £200
  • Add 'and any item is on backorder' to escalate further when the order is already partially backordered on top of the low stock situation. …ll have stock remaining of 2 or fewer units after this order and any item is on backorder

Badge preview

Default: Multi Low Stock

When this rule matches

Two Items At Critical Stock
Two products will have 1 and 2 units remaining respectively - both at or below the threshold of 2, meeting the two-or-more condition.
Three Items Depleted
Three products will have 0, 1, and 0 units remaining - well beyond the two-product minimum.

When this rule does not match

Only One Item Critical
Only one product is at critical stock (1 unit remaining). The second product has 10 units - the two-or-more condition is not met.
All Items Healthy Stock
Both products have comfortable stock remaining (8 and 15 units) - well above the 2-unit threshold.
One Item At Boundary One Above
One product has exactly 2 units remaining (at threshold) but the other has 3 (just above). Only one product qualifies, not two.

Workflow

This rule includes workflow features that help your team act on flagged orders.

Inbox
Yes

Good to know

  • Stock remaining is calculated at evaluation time. Concurrent orders may change actual stock levels between evaluation and fulfilment.
  • Products without stock management enabled in WooCommerce will not have a stock_remaining_after_order value and cannot contribute to the count.
  • The threshold of 2 units and the minimum of 2 products are fixed in the rule text. Edit the rule to adjust either value.

Frequently asked questions

  • How is this different from the low-stock-after-order rule?
    The low-stock-after-order rule fires when any single product hits critical stock. This rule specifically requires two or more products to hit critical stock in the same order - a more severe situation that warrants escalated reorder action.
  • Can I raise the stock threshold from 2 to 5 units for products with longer lead times?
    Yes. Edit the rule text to change the threshold from 2 to your preferred level and recompile. Stores with longer supplier lead times often benefit from a higher reorder point.
  • Does this count product variations separately?
    This depends on how WooCommerce manages stock for variations. If each variation has independent stock tracking, they count as separate products. If stock is managed at the parent level, they are counted once.

Related rules

Try this rule in your store

OrderBadger is free on WordPress.org. Install it and create this rule in minutes - no code required.

Install OrderBadger Free