Selling on eBay or Amazon does not require sending all your stock to a fulfilment warehouse. You can keep the products yourself, pack each order and hand the parcel to a carrier.
Amazon calls this Fulfilled by Merchant, usually shortened to FBM. On eBay, seller-managed shipping is the normal workflow for many small sellers. The idea is simple, but the seller is responsible for accurate stock, suitable packaging, realistic handling times, postage and tracking.
This approach is useful for testing a small product range because you can begin without committing a large quantity of stock to an external warehouse. It also shows you what fulfilment actually costs before you try to scale it.
The supply links below are optional examples to compare, not claims that you need every item or should buy a specific brand.
What self-fulfilment actually involves
When an order arrives, the seller normally has to:
- Confirm that the product is in stock and matches the listing.
- Pick the correct item from storage.
- Inspect it for damage or defects.
- Choose packaging that protects it without adding unnecessary size or weight.
- Pack, seal, weigh and measure the completed parcel.
- Buy or create the correct shipping label.
- Dispatch the parcel within the promised handling time.
- Upload or confirm tracking when the marketplace does not do it automatically.
- Keep enough information to deal with delivery questions, returns or damage claims.
Amazon's Fulfilled by Merchant overview describes FBM as the seller storing inventory and fulfilling customer orders directly. Amazon also provides Buy Shipping tools for purchasing labels and confirming seller-fulfilled orders.
eBay similarly provides packaging and measuring guidance and marketplace shipping labels. The exact carriers, rates and services vary by country, parcel and seller account.
Self-fulfilment therefore means more than putting an item into a box. You are operating a small picking, packing and dispatch system.
When packing orders yourself makes sense
Self-fulfilment is most practical when:
- You are testing a small number of products.
- Order volume is still manageable by one person.
- Products are easy to store and inspect.
- You already have suitable space at home, in a workshop or in a small stockroom.
- Some products need careful or unusual packaging.
- You want direct control over presentation and quality checks.
- Sending stock into a fulfilment network would be premature or expensive.
It is less attractive when products are very large, fragile, hazardous, perishable or expensive to insure. It can also become inefficient when orders interrupt the rest of your day or when your storage area is too disorganised to find items quickly.
The point is not to pack every order forever. The point is to learn whether the products sell and what the real fulfilment workload looks like.
Build a small packing station
You do not need a warehouse for the first few orders. You need one clean, organised area where stock cannot be mixed with personal items and completed parcels do not get lost.
A basic packing station can contain:
- A sturdy table or clear work surface
- Shelves or labelled storage boxes
- A postal scale
- A measuring tape
- Suitable boxes or mailers
- Protective paper or other filler
- Packing tape and a dispenser
- A normal printer or thermal label printer
- A container for labels, scissors and small tools
- A separate area for returns and damaged stock
Keep each product under a simple stock code, even if you currently sell only ten items. The code should appear on the shelf or storage box and in your own inventory record. This reduces mistakes when two products look similar.
The most useful supplies to buy first
Postal scale
A scale is more important than a label printer. Shipping charges commonly depend on weight, dimensions, destination and service. Guessing the weight can produce an incorrect label or an unexpected carrier adjustment.
Compare postal shipping scales on Amazon and check:
- Maximum supported weight
- Measurement increments
- Whether the display remains visible under a larger parcel
- Whether it can use batteries and mains power
- The dimensions of the weighing platform
Choose a capacity that fits what you actually sell. A small jewellery seller and a seller shipping kitchen equipment do not need the same scale.
Measuring tape
Measure the parcel after it is packed, not the product before packing. The final box or mailer determines the shipping dimensions.
Keep a normal measuring tape at the packing table. Record length, width and height in the order required by the carrier or marketplace.
Boxes and mailers
Begin with only a few sizes that fit your current products. Buying a large range of packaging before you have regular orders ties up money and space.
Use boxes for items that can be crushed or damaged. Use mailers only when the product is already durable or has enough internal protection. You can compare poly mailers on Amazon, but do not choose a thin mailer simply because it is the cheapest option.
Avoid using one carrier's branded packaging with a different carrier. eBay's packaging guidance specifically warns that mixing carrier-branded packaging can cause shipment problems.
Protective material
The item should not move freely inside the parcel. Protective material fills empty space, separates components and reduces impact.
Paper is suitable for many ordinary products and is easier to store than several specialised materials. Compare kraft packing paper on Amazon, then decide whether your product needs paper, bubble cushioning, foam, rigid inserts or another solution.
Fragile products should be tested with a completed sample parcel before being offered at volume.
Tape and dispenser
A basic handheld dispenser makes repeated packing faster and helps apply tape evenly. Compare packing tape dispensers on Amazon.
The dispenser matters less than using tape that adheres reliably to your chosen boxes. Test it on stored parcels and in the temperatures your packages may experience.
Label printer
A thermal label printer is convenient, but it is not essential for the first sale. A normal printer, plain paper and a document pouch or securely covered label can be enough while testing, subject to the carrier's requirements.
A dedicated printer becomes more useful when labels are printed frequently. Compare 4 x 6 thermal label printers on Amazon, checking operating-system compatibility, supported label sizes, connection method and the availability of replacement labels.
Do not buy one merely because online sellers often show them. First prove that label printing is a recurring task.
Three realistic starting setups
These are planning examples, not quoted equipment bundles. Prices vary by country and supplier.
Lean test setup: approximately €40 to €90
- Postal scale
- Measuring tape
- Two or three packaging sizes
- Packing tape
- Protective paper
- Existing household or office printer
This is enough to test a handful of ordinary products if you already have storage space and a computer.
Small regular setup: approximately €120 to €250
- Better-capacity postal scale
- Tape dispenser
- Larger supply of boxes or mailers
- Organised shelf bins
- Protective material
- Entry-level thermal label printer
This can make sense after orders are arriving regularly and the normal printer has become inconvenient.
Higher-volume home setup: €300 or more
- Strong shelving
- Several standard packaging sizes
- Spare consumables
- Reliable thermal printer
- Larger scale
- Dedicated inspection, packing and returns areas
Do not jump to this setup because you hope orders will arrive. Upgrade when existing order volume exposes a specific bottleneck.
Inventory, marketplace fees, postage, insurance and returns are not included in these examples.
A repeatable order workflow
1. Check the order before touching the stock
Confirm the product, quantity, variation, destination and promised dispatch date. Watch for cancelled orders or marketplace warnings before buying postage.
2. Pick and inspect the item
Match the product against the listing and your stock code. Check condition, accessories and quantity. For used eBay items, make sure the parcel contains exactly what the listing promised.
3. Pack for the actual journey
Use the smallest suitable package, but leave enough protection around the product. A package that looks neat but cannot survive normal handling is not properly packed.
4. Weigh and measure the sealed parcel
Do not weigh an open parcel and then add more packaging. Complete the package first, then record its final weight and dimensions.
5. Choose the carrier and service
Compare cost, delivery estimate, tracking, insurance and product restrictions. The cheapest service is not always appropriate for a valuable or time-sensitive order.
Amazon sellers may be able to purchase labels through Buy Shipping. eBay sellers may be able to use eBay Labels. Marketplace tools and supported carriers vary by country.
6. Attach the label clearly
Place the label on a flat, visible surface. Remove or completely cover old barcodes when reusing an appropriate box. Do not wrap the main barcode around a corner.
7. Dispatch and preserve proof
Hand the parcel to the carrier within the handling time shown in the listing. Keep the receipt or scan confirmation when available.
eBay explains that a seller choosing one-day handling is expected to have the item prepared, packaged and scanned by the following day within the stated local-time deadline. Read the current eBay handling-time guidance before setting an aggressive promise.
Amazon and eBay are not identical
The physical packing work is similar, but the selling environments differ.
Amazon usually uses structured catalogue listings and places strong emphasis on order performance, dispatch confirmation and delivery expectations. With FBM, you remain responsible for getting seller-fulfilled orders to customers on time.
eBay is often more flexible for used, collectible, one-off or unusual products. The seller still needs accurate shipping details and realistic handling times, but every listing can involve a different item and package.
A mixed seller should not assume that one shipping rule applies everywhere. Keep separate marketplace settings and check the order inside the platform where it was placed.
Costs beginners commonly miss
The sales price is not the amount you keep. A self-fulfilled order may include:
- Product cost
- Marketplace selling fees
- Packaging
- Postage
- Tracking or insurance
- Payment-related fees where applicable
- Returns and replacement shipments
- Damaged or lost parcels
- Tax and accounting obligations
- Your own picking and packing time
Calculate a sample order before publishing the listing.
For example, imagine an item sells for €30. If the product cost is €10, marketplace and payment costs total €4, postage is €6, packaging is €1.20 and the expected allowance for returns or damage is €0.80, the retained amount before tax and labour is €8.
That does not automatically make the product good or bad. It shows why shipping must be included in the decision before the first sale.
The most common early mistakes
Promising dispatch times you cannot maintain
A one-day handling promise is not useful if work, weekends or carrier opening hours prevent you from meeting it. Start with a schedule you can reliably maintain.
Guessing postage
Small differences in dimensions can affect the available service or final charge. Pack, weigh and measure a sample before setting shipping prices.
Buying equipment before proving demand
A printer, shelving system and hundreds of mailers do not create sales. Start with the minimum functional setup and upgrade from real order volume.
Using one package for every product
An oversized box increases material use, storage needs and possibly shipping cost. An undersized mailer increases damage risk.
Mixing saleable stock, returns and damaged goods
Keep them physically separate. A returned or defective item should not accidentally be sent to the next customer.
Ignoring the value of your time
Ten minutes per order becomes more than three hours across twenty orders. Track the time spent picking, packing and dispatching.
A sensible first test
Start with five to twenty units across a very narrow product range. Pack one complete sample of each product before publishing the listings.
For every sample, record:
- Final packed weight
- Final dimensions
- Packaging cost
- Likely shipping service
- Total fulfilment time
- Expected retained amount after costs
Then place the supplies for that product together and write a simple packing checklist.
After the first ten real orders, review:
- How often the promised handling time was difficult
- Whether packaging protected the products
- Whether postage matched the estimate
- Which supplies ran out first
- How many minutes each order required
- Whether any buyer question could have been prevented by clearer listing information
Only then decide whether to buy better equipment, increase stock or outsource fulfilment.
Who should avoid self-fulfilment
This model is a poor fit if you have no reliable storage, cannot dispatch consistently, dislike repetitive packing work or are selling products that require specialist handling.
It may also be unsuitable if the expected margin is too small to pay for packaging, postage errors, returns and your time.
Self-fulfilment can be an inexpensive way to learn ecommerce operations. It is not passive income. Every successful order creates a real promise to select the right product, protect it and get it moving on time.