How to Choose a Marketplace Warehouse: FBO or FBS, Regional Warehouses, Inbound and Slots

"Where do I ship my stock?" is the question sellers ask most often in their first month on a marketplace. The answer seems obvious: wherever inbound is faster and storage is cheaper. In practice, the warehouse choice affects four parameters at once:

• Which search pages the card appears on — WB and Ozon have regional search results, and a card stocked only in Podolsk won't rank for a buyer from Novosibirsk as high as a card with stock in the Novosibirsk cluster.
• Delivery speed — displayed on the buyer's card as "Arrives tomorrow" or "Arrives in 5 days", and it directly affects CR (conversion from impression to order).
• Per-unit logistics cost — inbound handling fee + storage + delivery to the buyer = from 8% to 45% of the product price depending on the scheme.
• Time to go on sale — from submitting a shipment to stock appearing on the card takes from 2 days to 3 weeks.

This Support article is a step-by-step methodology for matching a warehouse to a product. The method is applied in the standard Trusty MPO audit as part of the "infrastructure" layer. Here it's laid out so a seller can run the procedure independently.

Methodology context — in the parent materials:

• Pillar "Marketplace Promotion" — the 8 MPO modules and where infrastructure sits among them.
• Hub "Wildberries Promotion" — WB specifics of stock and regional search results.
• Hub "Ozon Promotion" — Ozon specifics and rFBS as a separate channel.

Marketplaces offer three fulfillment schemes. Choosing the scheme is the first decision, and it determines everything else.

FBO (Fulfillment by Operator) — the product physically sits in the marketplace's warehouse. The seller delivers boxes to an FBO warehouse; the marketplace stores, packs, and delivers to the buyer. Costs: inbound handling + storage + delivery to the buyer. Pros: fast delivery on the card out of the box (1–2 days in major cities), higher card ranking in regional results, no operational involvement for the seller. Cons: more expensive per unit, requires investing in inventory upfront, risk of dead-stock penalties.

FBS (Fulfillment by Seller) — the product is stored in the seller's warehouse. After an order, the seller packs the product and brings it to the marketplace's sorting center within 24–48 hours. Costs: only delivery to the buyer + marketplace commission. Pros: no storage or inbound handling costs, you can test a product without holding large stock, assortment flexibility. Cons: slower delivery (3–7 days), lower card ranking in regional results, the seller runs the operations.

rFBS (real FBS) — a hybrid available only on Ozon. The seller stores the product but ships to the buyer directly (not through an Ozon sorting center). Costs: only your own logistics + Ozon commission. Pros: works for oversized goods, for regions Ozon's logistics doesn't reach, for unique products. Cons: all delivery responsibility sits with the seller, penalties for delays are higher, and there are seller reputation requirements.

This is the most underrated part. WB and Ozon have regional search results. A buyer from Krasnodar sees not the same card and not the same position as a buyer from Yekaterinburg. When ranking, the algorithm considers:

On WB:

• Stock availability at a warehouse closer to the buyer (cluster priority).
• The estimated delivery time on the buyer's card (1, 2, 3 days).
• The share of buyouts from that region over the last 30 days.
• Behavioral signals on the card specifically in that region.

On Ozon:

• Product availability for delivery to the buyer's city.
• Delivery time and logistics type (express, standard).
• The seller's category reputation in the region.

What this means in practice. A card with stock only in Podolsk serves Moscow and the central region fast (~30% of WB volume). In Siberia, the same card will show 5–10 positions lower with an "Arrives in 5 days" label. That cuts CR by 1.5–2 times. Sellers ask: "why does a competitor with identical specs rank higher?" — the answer often lies in stock geography, not in SEO or prices.

Once the scheme is chosen (FBO/FBS/rFBS), you need to decide which specific warehouse gets the stock.

Factor 1. Demand geography

Gather your sales statistics (or competitors' sales) by region. On WB — the "Analytics → Order Geography" section in the seller dashboard. On Ozon — "Analytics → Delivery Regions". If 50% of orders come from the Central Federal District — the main stock belongs in Podolsk or Elektrostal. If ¾ of orders come from the Volga region and the South — prioritize Kazan/Tula/Nevinnomyssk.

For a new card with no history of its own — take the top 3 competitors, look up their sales regions via MPStats/Moneyplace, and use that map as your guide.

Factor 2. Inbound cost and speed

Not all warehouses accept shipments equally. The WB warehouse in Podolsk in summer 2025 processed inbound shipments in 12–24 hours. The Kazan warehouse in the same period — in 5–10 days. This happens because different warehouses are overloaded unevenly: in peak periods (September, November, December) WB and Ozon physically can't unload shipments in time.

Check before shipping: on WB, in "Shipment Management → Create Shipment", inbound coefficients are shown when selecting a warehouse (from x0 = free to x5 and above). A high coefficient = the warehouse is overloaded, inbound is paid or unavailable.

Factor 3. Product dimensions and category

Not every warehouse accepts every category. The WB warehouse in Krasnodar, for example, doesn't accept oversized goods (over 1.2 m long). The Ozon warehouse in Khorugvino restricts perfume inbound due to licensing requirements. Before choosing a warehouse, check the category and dimension requirements — each marketplace has its own list of restrictions, updated periodically.

Factor 4. Storage and logistics cost

Storage rates differ across warehouses. WB Elektrostal and WB Podolsk are roughly the same, while WB Khabarovsk is more expensive because the turnover cycle is longer. Delivery to the buyer is the opposite — cheaper when the warehouse is near the buyer.

The calculation: expected order volume from the region × average delivery cost + storage for the period. At small volumes (<100 orders from a region per month) it's cheaper to store in one central warehouse. At large volumes (>500 orders from a region) distribution pays off: a main warehouse + a regional one.

Factor 5. Seasonality and testing

If the product is seasonal — pick the warehouse with regional seasonality in mind. Fur coats — prioritize the Urals/Siberia; air conditioners — prioritize the South. If the product is new with no history of its own — better to start with one central warehouse, collect 30 days of statistics, and only then distribute stock.

The most common reason a new card launches late is a shipment stuck at inbound. Typical scenarios and how to avoid them:

Scenario 1. The shipment arrived, but the inbound coefficient went up. Sellers ask: "I paid for the shipment at the x1 rate, but the warehouse coefficient is already x3 — what do I do?" Answer: the coefficient is locked at the moment the shipment is created, not at arrival. So always create the shipment in advance — 7–14 days before the planned dispatch.

Scenario 2. The warehouse closed inbound for the category. Marketplaces sometimes temporarily block inbound for certain categories (for example, dietary supplements after Rospotrebnadzor tightened its requirements). The shipment will arrive — and won't be accepted; you'll have to haul it back. Check the category's inbound status on the day you create the shipment.

Scenario 3. Defects at inbound. During inbound, the marketplace checks packaging, labeling, and integrity. If 5% of units are defective — the entire shipment may be sent back. Check packaging and labeling before dispatch: WB inspection is stricter than Ozon inbound.

Scenario 4. The shipment arrived, but the card shows no stock for 2–3 days. This is normal — after inbound, the marketplace takes another 24–72 hours to sync the data. Don't panic; check on day 4. If there's still no stock on day 4 — open a support ticket with the shipment number.

You don't need to cling to one scheme forever. Signs it's time to reconsider:

• The card is top 10 in one region and beyond 50th in another. That points to a stock geography problem. Distribute across warehouses.
• CR from city X is 2 times below average. Often tied to an "Arrives in 5 days" label — meaning cluster X has none of your stock. Add a regional warehouse.
• Storage has overheated to 15% of the product price. The product sits too long. Reduce batch sizes or move slow SKUs to FBS.
• You launched a new category where FBO is mandatory (for example, express categories on WB). Then even on FBS logic you need to think about a minimal FBO stock.

• Pillar "Marketplace Promotion" — the 8 MPO modules in which the warehouse is one of the critical infrastructure layers.
• Hub "Wildberries Promotion" — WB regional results, the link between stock and the behavioral funnel.
• Hub "Ozon Promotion" — rFBS as an Ozon exclusive, the link between bids and logistics.
• Support "Keyword Gaps" — why even perfect SEO without the right warehouses won't deliver the maximum.

Related deep dives: regional warehouses, cross-docking and transit · delivery speed as a ranking factor.

Open "Analytics → Order Geography" in your seller dashboard and see where 80% of your sales come from. If the main flow is from the Central Federal District while the stock sits in a distant region — you're already losing 20–40% of your potential. If you're on WB — run the free forseller AI audit — its "infrastructure" layer shows how the geography of your stock matches the geography of your demand.

If the task is recurring (an SKU line, entering a new region, seasonal prep) — the method quickly becomes labor-intensive by hand. In the standard Trusty MPO audit this layer is automated and cross-referenced with the other layers (SEO, behavioral funnel, advertising).

What to do in a warehouse emergency — in the breakdown of support measures after the WB warehouse fires.