Outsourced Fulfilment or In-House: What Changes in Process and in Data

Moving to a third-party warehouse is sold as a cost decision and is mainly a control decision. From the day you move, you no longer see stock with your own eyes, you do not choose who packs, and you cannot fix an error the same day. In exchange you get capacity, operating hours and seasonal flexibility.

What actually changes

The last row is what most businesses discover after signing: returns are not automatically included in the price, and the process differs fundamentally from outbound shipping.

When does outsourcing pay off?

• When seasonality is sharp and you pay for space and people in weak months.
• When volume grows faster than you can hire and train.
• When you need long operating hours or same-day dispatch.
• When your warehouse has become the bottleneck that threatens the collection window.
• When you want to focus on product and marketing rather than operations.

And when less so: when a product needs special handling, when packaging is part of the brand, when volume is small and stable, and when you are still changing processes frequently.

What to check before moving

1. What data comes back - real-time stock or a daily report, and through what interface.
2. How new goods are received, and how long until they are sellable.
3. Who is responsible for counting, how often, and what happens on a discrepancy.
4. Packaging - whether your own materials, inserts or gifts are supported.
5. A picking error - who pays for the redelivery and for the item.
6. Returns - who receives, who inspects, and who decides what goes back into stock.
7. Ending the contract - notice period, and who pays to get the stock back.

Point seven is the only one that is easy to settle beforehand and impossible afterwards. Stock sitting in someone else's warehouse is both an asset and negotiating leverage.

The value that decides everything: real-time stock

A third-party warehouse reporting stock once a day puts you back into the dropshipping problem - a store selling on stale information. What to confirm is how frequently the figure updates, and what happens when a gap between the report and reality is found.

Also ask how damaged goods are handled: are they deducted from available stock automatically, or does someone have to report them. It sounds like a small detail and is a source of permanent discrepancies, exactly as described in inventory in a system versus a spreadsheet.

How to measure a fulfilment provider

Three metrics, all measurable from your side: share of orders dispatched same day out of those received before the cut-off, error rate (wrong item, wrong quantity, missing), and time from receiving a return to the item being sellable again.

The third is the least measured and the most consequential financially: an item that comes back and sits for a fortnight without being processed is an item you cannot sell. In a business with limited stock that directly reduces sales.

What happens in the transition month

The transition month is the expensive one, and it deserves planning as a project rather than as a move. Three things happen at once: stock is counted, packed and physically relocated; systems need to know the location changed; and your team learns an entirely new process for handling exceptions.

What reduces the pain: move in a quiet period rather than before a season; count before and after and compare, because discrepancies created during a move are very hard to attribute later; and keep a small stock of your best sellers with you for the first fortnight, so a problem at the new provider does not stop sales.

That last preparation is also what lets you walk away quietly if the move does not work. A fulfilment provider is a reversible decision only while not all your stock sits with them.

What to check after a month

• Share of orders dispatched same day, by week, so you see a trend rather than an average.
• Errors - how many, and on which items.
• Returns - how long until they were sellable again.
• Customer enquiries about delivery, compared with the previous month.
• Unexpected charges on the invoice that were not in the proposal.

The last often surprises: charges for oversized storage, for handling a large item, or for processing a return are lines that look small in a proposal and large on a real monthly invoice.

The question nobody asks early enough

Who owns stock accuracy once it lives somewhere else. In-house, the answer is obvious because the same people count and pick. With a provider it is a contractual question: how often they count, who pays for a discrepancy, and what evidence settles a disagreement.

Settle it before signing rather than after the first count, because the first count is exactly when both sides discover they assumed different answers.

What about wanting both

There is a middle model that works well: a third-party warehouse for standard fast-moving products, and a small in-house one for items needing special handling, gift wrapping and urgent orders. It costs slightly more in overhead and keeps control exactly where control is genuinely needed.

What matters in that model is deciding in advance which item lives where, and not splitting the same item across both - because that returns you precisely to the two-location stock problem described in running a multi-branch business in one system.

Sources

• HFD - fulfilment and logistics services
• Cheetah - shipping and logistics services