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Approve a seller to store inventory

Last updated October 23, 2026

Stock types: Seller sent and seller pre printed. You approve the seller once and give them space in bins. From then on they can send any product that fits your rules. There is no product by product approval.

Three controls, each set once:

  1. The seller: approved or not, on 3PL → Sellers.
  2. Their space: how many bins they may fill. A shipment that needs more cannot be sent.
  3. What you accept: size, weight, and kinds of items. Only a product that breaks a rule is checked, and only on its shipment.

Seller inventory end to end

Where

  • 3PL → Sellers: requests from sellers, and each seller's space.
  • Settings → Inventory → 3PL program: What we accept from sellers.

Sellers ask from Inventory → My stock in their portal. They see it only when your 3PL program is on.

Approve a seller

  1. Open 3PL → Sellers. New requests are under Waiting on you: the seller's name, asks to store inventory, and their note if they wrote one.
  2. Set Space in bins. It starts at your Default space for new sellers. Leave it empty for No limit.
  3. Click Approve. To say no, click Decline.

The seller can send right away. Approving does not hold bins for them. Space is checked each time they send. See Capacity.

Change space, pause, or resume

Every seller you have answered is listed under Seller space with their status (Approved, Paused, or Declined) and their space.

Button What it does
Change space Enter a new number of bins, then Save. Empty means No limit
Pause new shipments The seller cannot send new shipments. Their stock stays where it is
Resume They can send again
Approve (on a declined seller) Approves them with the space you enter

Space requests

A seller who runs out of room can ask for more from My stock. The request shows under Waiting on you: asks for N bins, what they have now, and their note.

  • Give N bins sets their space to that number.
  • Not now leaves it as it is.

What we accept from sellers

Set once under Settings → Inventory → 3PL program. Leave a box empty for no limit.

Setting What it does
Largest item (length, width, height) A product bigger than this is flagged on its shipment
Heaviest item A product heavier than this is flagged
Default space for new sellers (bins) The space a new seller starts with when you approve them
We check these before they arrive Tick Fragile, Liquids, Batteries, Food, or Hazardous. Sellers are asked about these the first time they send a product, and a product marked as one is flagged
Review new products before they arrive Off: only products that break a rule are flagged. On: every product a seller sends for the first time is flagged on that shipment
Sellers give the size and weight of each new product Turn on if you plan space by volume. Sellers must answer once, the first time they send it
Products need a barcode Sellers type or scan the barcode the first time they send a product. Off: the Riverr box label is all the dock needs

Click Save after changing the size, weight, or default space. Checkboxes and switches save as you click them.

When you set a size or weight limit but sellers are not required to give size and weight, a product sent without them is flagged so you can check it by eye.

Products are checked on the shipment, not before

When a seller sends a product that breaks a rule (or any first time product while Review new products before they arrive is on), that product is flagged on the incoming shipment. At receiving you see Check before counting and approve or decline it before you count. See Receive a seller shipment.

  • Approved: the product is stored for that seller and is not checked again.
  • Declined: it comes off the shipment, and the seller sees Not accepted with your reason.

Products that break no rule are stored the first time they are sent, with nothing for you to do.

3PL → Products (Products to review) lists products that need your OK before they come in. You can approve or decline them there ahead of the shipment, or wait and do it at the dock.

How a seller moves along

What you see Meaning
Request under Waiting on you The seller is waiting for your answer
Approved under Seller space They can send
No stock yet on 3PL → Retail stock A product is stored for them. Nothing has been counted in yet
Needs your OK on Inventory → Receiving A shipment came in while the warehouse is nearly full. Accept or decline it
Counted on 3PL → Retail stock Units were counted in, by a receive, a stock order putaway, or an opening count

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