The following contribution is from another author.
Fulfilment mistakes can often be missed as they are not always the big issue you imagine them to be. But there will be a pattern you can find and follow. It might look like a return rate that is steadily rising, or you’re seeing more frequent missed cutoffs, or that one-off customer complaint becoming a regular occurrence.
But by the time the pattern is obvious, it’s likely already been costing you sales or revenue for months. And it’s highly probable you’re making one of the 8 mistakes we’re about to look at below.
Ignoring Inventory Accuracy
Stock counts that only exist on paper or in a system nobody’s checked in weeks are one of the fastest ways to lose sales. Either you oversell an item you don’t actually have, triggering a cancellation and refund, or pickers waste time hunting for stock that was never really there in the first place. Both scenarios result in the same outcome and cost you time and money. And both are entirely avoidable.
Regular cycle counts — checking a rotating portion of inventory rather than doing one full stocktake a year — catch these gaps early enough to fix them before a customer ever notices. And they’re far less disruptive to daily operations than shutting the warehouse down for a full count.
Underestimating Peak Season Demand
If you’re ordering stock and assigning staffing levels based on the average month when you hit peak season, things are going to get harder fast. Christmas, Black Friday, or a viral product moment can multiply order volume overnight. And if your warehouse is only able to cope with average demand, you won’t be able to keep up when orders surge. The result is delayed orders, staffing getting overwhelmed trying to cover the gap, and customers who need something simply going elsewhere.
Forecasting based on last year’s peak rather than last month’s average avoids most of this entirely and puts you in a better position early to ensure you have the stock and staff to cope well ahead of the rush.
Poor Warehouse Layout
A layout that puts your best-selling products at the back of the warehouse, furthest from the packing stations, adds unnecessary walking distance to every single pick. Multiply them across hundreds or thousands of orders per week, and it becomes a serious drag on both speed and labour costs. This will be happening even if nothing about the process looks obviously broken day to day.
For best results, products should be arranged by sales velocity, with your fastest movers closest to where orders get packed. Items that are frequently bought together are grouped near one another, too. Then make sure to revisit this layout every few months so you can rearrange as order patterns change or your approach to new seasons’ promotions, or changing customer habits.
Delaying Outsourcing
Many businesses wait far too long to hand fulfillment over to a specialist. Often due to it feeling like they’re giving up control rather than gaining efficiency. But the signs that in-house fulfillment has been outgrown are usually clear well before anyone admits it. Signs such as maxed-out storage space, staff working overtime just to hit cutoffs, or shipping errors creeping up every time volume spikes.
Each of these signs tends to get explained away, individually assigning fault to a busy week here or a bad hire there, rather than being accepted as part of a bigger pattern. At that point, working with dedicated ecommerce fulfillment providers who already have the systems, space, and staff in place is often the more efficient option, not a step back. And delaying this decision can end up costing you in lost sales, reputation, and efficiency.
Inconsistent Packing Standards
When packing stations aren’t set up identically, output speed depends entirely on who’s working that day rather than on the process itself. One packer with boxes and labels within reach will move far faster than someone who needs to go to a different place to find supplies every few orders. And during busy periods, every extra step the staff needs to take will cost you time and money.
One of the best things you can do is to standardise each station. Equip them with the same box sizes, same shelf heights, same checklist taped up in the same place, so you’re eliminating any variability, allowing staff to work at full speed regardless of which station they’re assigned to.
Manual Order Processing
Paper-based or manually keyed order processing introduces errors that automation simply doesn’t make. Easy mistakes, such as wrong item, wrong quantity, wrong address, etc are all common when people are working through stacks of orders by hand. And each mistake can result in a return, a refund, a lost customer, and more. And the cost of fixing it after the fact is always higher than preventing it in the first place.
Barcode or RFID scanning at each stage of the process catches these errors as they happen instead of after a complaint arrives. Plus, it removes the need for staff to manually double-check work that a scanner can verify instantly.
Slow Returns Handling
Returns are often treated as an afterthought, processed whenever staff have spare monent rather than on a set schedule. This delays refunds and restocking, both of which affect the customer’s likelihood of buying again and the accuracy of your inventory in the meantime. A returned item that sits unprocessed for a week is a week where your stock count is wrong, and a customer is waiting on money that should already be back in their account.
No Backup for Staff Shortages
When only one or two people know how to run a specific station — receiving, quality checks, shipping prep — the whole operation is exposed the moment they’re out sick or a rush hits and there’s no one who can step in. Cross-training staff across picking, packing and receiving means coverage does not depend on a single person being present. It doesn’t need to be complicated. A rotating schedule and a simple checklist per station are usually enough to get you real coverage, and you get the chance to absorb bottlenecks rather than being held up by them.
