At-Once Inventory: Show Available Stock Without Overselling
Wholesale brands avoid overselling by treating inventory allocation as a decision, not a sync setting. You have one pool of stock and several promises: pre-books, a boutique's at-once order and your own storefront. Decide what each promise may take, reserve pre-books first, choose whether a short at-once order stops or backorders, and keep your storefront in step. Then offer whatever is left to your existing accounts, with a private link and a deadline, before you discount it anywhere else.
Key takeaways
- Overselling is usually an inventory allocation problem: two channels promised the same unit.
- Reserve pre-book units before at-once stock appears on any line sheet.
- A cushion protects key accounts but hides units you could sell.
- Decide in advance whether a short at-once order is blocked or backordered.
- Offer leftovers to current accounts first, with a clear deal and an expiry.
What should your ATS inventory show, and who sees it?
Your ATS inventory should show what a buyer can order and receive now, after pre-book commitments and holds come out. The wholesale terms glossary defines the term, and open-to-buy for retail buyers explains how buyers read it against their budget. The harder question is who sees which number.
| Where stock is shown | Who sees it | What it should show | Main risk |
|---|---|---|---|
| Wholesale line sheet | Retail buyers and your reps | At-once units after pre-book reservations and any cushion, plus pre-book styles with dates | A rep and a buyer order the last units at the same moment |
| Your own storefront | Consumers | Units left after wholesale commitments | The site sells units promised to a boutique |
Reps need the same ATS number that buyers see. If a rep quotes from a spreadsheet while the buyer reads a live line sheet, both can promise the same units.
Some brands keep separate wholesale and storefront inventory locations. Allocation stays easy to read, but someone has to move units by hand when one side runs low. The alternative is one inventory record that reserves units the moment an order is captured.
How do you set up inventory allocation without overselling?
Most brands do not struggle with syncing counts. They struggle with deciding what each channel may take. Write that down as an allocation policy: which accounts get priority when demand exceeds supply, which units are protected for wholesale, what triggers moving units between pools, and who can override. Then apply it in five steps.
1. Decide what each audience can see
Choose which styles each account sees and whether at-once and pre-book appear side by side. A style meant for a few key stores should not sit on every line sheet. Brandboom lets sellers hide products from specific retailers within presentations. Changes to availability, pricing and images sync instantly to all active line sheets, so buyers are not working from an old copy.
2. Reserve stock for pre-books first
Pre-books are promises made before the goods arrive. Count those units out before releasing any at-once quantity, or an early at-once order can take stock a boutique already booked. Brandboom lets sellers show pre-book and at-once availability in one line sheet with labels and delivery dates, and sell by ship window: At-Once, Pre-Book or Future. When a buyer orders across ship dates, the order is split into a separate order form per ship date.
3. Hold a deliberate cushion, and know what it costs
A cushion is a number of at-once units you choose not to show, kept for key accounts, reorders or damaged goods. It is a trade-off, not a rule. Every unit held back is one no buyer can see or order, and if the key account never reorders, the cushion becomes leftover stock. A cushion can also hide a channel conflict instead of resolving it. If you hold one, set it per style, name who can release it and when, and review it after each selling window.
4. Make the order flow stop or backorder on purpose
Decide in advance what happens when an at-once order asks for more than you have. Blocking protects the buyer from a later cancellation. A backorder captures demand when more stock is coming. Brandboom tracks inventory and allocates it as orders are placed. Prevent Overselling blocks At-Once orders when inventory is short, and Enable Backorder is the deliberate alternative that lets buyers order out-of-stock units. Units are reserved when an order is set to Complete and released if it returns to Processing or is voided. Auto-Complete deducts inventory without the Processing step. Live Inventory Mode lets several reps order at the same time, reserving inventory instantly per order to reduce oversells.
5. Keep a Shopify storefront in step
If you also sell on Shopify, Brandboom offers Shopify inventory sync as an add-on so both channels draw on the same counts; wholesale platforms that work with Shopify covers how sync works. Your policy should still say which channel gets the last units.
How to sell excess inventory: should existing accounts get it first?
Yes. When you work out how to sell excess inventory, offer it first to the retailers who already buy from you, then to selected closeout buyers. Existing accounts know the product and their customers, and a reorder is quick for them. Going to them first also keeps discounted stock away from sellers who might undercut your regular accounts.
Run the offer in this order:
- Pick the accounts. Start with stores that sold those styles well. A top-styles report shows what moved.
- Send a private link. Share the offer only with the accounts you chose, not on your main line sheet.
- Make the deal clear. Set the price yourself, as a closeout price list or a volume break, so buyers are not left to make lowball offers.
- Set an expiry. A firm end date gives buyers a reason to act and tells you when to move on.
- Then go to selected closeout buyers. Choose buyers whose resale prices will not undercut full-price accounts. Wholesale channel conflict covers the pricing risk.
Brandboom lets sellers share a private line sheet link with an access code and an expiration date, and set account-specific pricing and volume discounts. Sellers can also hide closeout styles from accounts that should not see the offer, such as a store that just paid full price. Self-serve reorders let buyers order styles they already carry without calling your team.
How does a wholesale platform support this setup?
The allocation policy, the cushion and the closeout list are decisions you make. A platform should carry them out consistently. Brandboom lets sellers show pre-book and at-once stock in one line sheet, block or backorder short at-once orders, and offer leftovers to chosen accounts through private, expiring links with their own pricing. Brandboom plans start at $50/month for the Basic plan.
FAQ
How do brands sell excess at-once inventory to their existing wholesale accounts?
They offer it to the accounts that already carry the line before anyone else. The brand sends a private line sheet link to chosen accounts, sets a clear deal such as a closeout price list or volume discount, and adds an expiry. Stores that recently paid full price can be left off. Whatever remains after the deadline goes to selected closeout buyers whose pricing will not undercut regular accounts.
What is buffer inventory, and should I hold it?
Buffer inventory is stock you deliberately keep off your available-to-sell number, usually for key accounts, reorders or damaged goods. Hold it only if you can name who it is for and when it will be released. The cost is real: buffered units are invisible to every other buyer, and an unused buffer becomes excess stock. Review each buffer after every selling window.
Should a short at-once order be blocked or backordered?
Block it when replenishment is not confirmed, because a clear "not available" at ordering costs the buyer less than a cancellation later. Allow a backorder when more stock is on the way and the buyer accepts a later ship date. Make the choice in advance, so reps and buyers get the same answer every time.
How do I stop my own site from selling stock promised to wholesale?
Take wholesale commitments out of the storefront count before consumers see it. You can keep a separate wholesale location, which is simple but needs manual transfers. Or you can keep one inventory record that reserves units when a wholesale order is captured. Reserve pre-book units first, then write down which channel gets the last units when both want them.