A backorder is a customer order you have accepted but cannot ship today because the item is not on hand. Manufacturers get stuck with them when purchasing, production, and sales work off different numbers. The fix is one shared inventory picture and promise dates tied to real orders.
A backorder is not a mystery. It is a receipt of a gap between what sales promised and what the floor could build or the warehouse could pick on that date. The order is still coming, just later than the customer expected, and later than someone on your team told them. That gap costs you twice: once in the delay itself, and again in the phone call, email, or Slack message someone has to send to explain it.
What actually causes backorders on a manufacturing floor?
Backorders usually trace back to one of a handful of repeat offenders, not a single catastrophic failure. They tend to be quiet, and they tend to show up in more than one order before anyone connects the dots.
- A supplier ships late and nobody flagged the purchase order as at risk until the ship date passed.
- A bill of materials is missing a component that was swapped on the floor but never updated in the system.
- A sales order gets entered against inventory that is already committed to a different customer, so the number on the screen was never real to begin with.
- Demand jumps past what the reorder point was set to catch, because the reorder point was set once and never revisited.
- Work orders compete for the same raw material or the same machine time, and whoever entered their order first wins by default, not by priority.
None of these require a bigger team to fix. They require one number everyone is looking at: on hand, minus what is already committed to other orders, minus what is reserved for open work orders. That is available, and it is the number backorders hide behind when it does not exist.

How should a manufacturer handle a customer who is already backordered?
The order is late. That part is already decided. What is still in your control is how the customer hears about it and how accurate the new date turns out to be.
- Tell the customer before they have to ask. A proactive note beats an apologetic reply to their inquiry every time.
- Give a date tied to a real purchase order or work order due date, not a round number that sounds reasonable.
- Update that date the moment the underlying purchase order or work order changes, even if the news is worse.
- Offer a partial shipment when it is genuinely useful to the customer, not as a way to look responsive.
- Track which backorders keep slipping. A customer who gets pushed twice is a different conversation than one pushed once.
Customers tend to forgive a late date. They do not forgive finding out on their own, or getting three different answers from three people on your team because nobody was looking at the same order.
What stops backorders from piling up in the first place?
Prevention is less dramatic than a production scheduling overhaul and more effective than it looks on paper. It comes down to three habits that have to run together, not in isolation.
First, purchasing and production need to see committed demand, not a sales forecast from last quarter sitting in a drawer. A reorder point that was set when the business did half its current volume will keep triggering backorders no matter how good your supplier relationships are. Second, material readiness has to be checked before a work order is released to the floor, not discovered when a technician walks to the parts bin and finds it empty. Releasing a work order you cannot actually build just moves the backorder from the customer to the shop floor. Third, someone has to own the exception report: the list of orders where committed exceeds on hand, reviewed daily, not at month end when the order has already shipped late.
Growing manufacturers usually hit backorder trouble right around the point where spreadsheets and a general ledger system stop being enough to track all three of those habits at once. QuickBooks or Xero can tell you what you sold and what you spent. Neither one was built to tell you whether the component for order 4821 is sitting in a bin, on a truck, or still waiting on a supplier.
Where Fishbowl fits into managing backorders
Fishbowl is the platform. Fishbowl Inventory, Fishbowl Advanced Manufacturing, and Fishbowl Advanced Warehouse are purpose-built parts of Fishbowl, matched to how the business runs.
If you buy finished goods and resell them, Fishbowl Inventory handles receiving, stocking, picking, transfers, and fulfillment. Add Fishbowl Channels when those products sell through Shopify, Amazon, Walmart, or other channels. If you manufacture the product and need BOMs, work orders, MRP, production scheduling, or job and labor costing, use Fishbowl Advanced Manufacturing, with Channels added if you also sell online. If you do not manufacture but need deeper warehouse workflows such as 3PL management or EDI-driven fulfillment, use Fishbowl Advanced Warehouse. Multiple storefronts or owned locations alone do not automatically mean you need Advanced.
On cloud Inventory, the work of catching a backorder before it happens gets handed off. The AI Operations Specialist uses live Fishbowl data to prepare purchase orders, sales orders, transfers, receipts, and adjustments for your approval. Nothing is saved or changed without the operator's approval. Ask, Approve, Done. Instead of someone noticing a low quantity and starting a purchase order from scratch, the draft is already built from what is connected to Fishbowl, waiting for a yes.
Brian Garrett at Telluric Companies, a beta tester, said the AI Operations Specialist saves him at least 45 minutes per purchase order. That is the PO workflow specifically, and it is the time that used to go into checking stock, checking the supplier catalog, and typing the order by hand before a single part arrived.
For manufacturers running BOMs, work orders, and production scheduling, Fishbowl Advanced Manufacturing adds data-focused AI that answers what is happening, what is coming, and what needs attention across open orders and components. Koken USA saw 10% fewer sales backorders after bringing that visibility into their production planning. Hodo Foods cut stockouts by 35%, and Cascadia Motion lowered inventory costs by 18% with the same combination of Advanced plus data-focused AI. None of those are Inventory results; they are what happens when a manufacturer finally has one number for committed, on hand, and in production at the same time.
What should a growing manufacturer track to keep backorders from creeping back up?
A backorder rate on its own does not tell you much. Pair it with a few other numbers and a pattern usually shows up fast.
- Backorder rate: the percentage of order lines shipped late against the original promise date.
- Average days late: how far past the original date backordered lines actually ship.
- Repeat backorder rate: how often the same SKU shows up on the exception list month after month.
- Fill rate at order entry: the percentage of lines that could have shipped complete on the day the order was placed.
- Supplier on-time rate: how often inbound purchase orders arrive on or before the date they confirmed.
A manufacturer that tracks these four or five numbers in one place, instead of pulling them from separate spreadsheets once a quarter, catches a bad pattern in weeks instead of after a customer walks. More on how Fishbowl brings those numbers together is on fishbowlinventory.com.
Software can tell you an order is backordered. It will not draft the fix or hand it back for your yes. Get a demo and see what that looks like on your own purchase orders and work orders.
Fishbowl does the work. You make the call.
Frequently asked questions
What causes backorders in manufacturing?
Backorders come from a mismatch between what sales promises, what purchasing has on order, and what production can actually build. Common triggers are a supplier shipping late, a bill of materials missing a component, a sales order entered against a quantity that was already committed elsewhere, or demand that spiked faster than reorder points were set to catch.
What is the difference between a backorder and a stockout?
A stockout means the shelf is empty with no order attached to it yet. A backorder means a customer has already placed and been accepted for an order you cannot fill today. Every backorder starts as a stockout, but not every stockout turns into a backorder if nobody has ordered that item.
How should a manufacturer tell a customer their order is backordered?
Tell the customer before they ask, give a date tied to a real purchase order or work order rather than a guess, and update that date the moment new information changes it. Silence is what turns a backorder into a lost customer, not the backorder itself.
How long does it take to set up Fishbowl Inventory to manage backorders?
Paid setup and training typically run 6 to 8 weeks with expert-led guidance, but the system is useful from your first live count. You do not have to wait for a full rollout before Fishbowl starts showing you committed quantities against what is actually on hand.