Buy eligible eBay listings in one step from uBuyAssist (web app, September 2026)
What it is.
Commit to Buy places the order on eBay under your connected eBay account the moment you confirm, so you skip the checkout pages. It is optional and paid: a usage fee of 1% of the item price, invoiced monthly, paid by you. Buying in volume? Discounts on the fee can be reviewed on request: email su*****@*******st.com. If you save a card when paying an invoice, or add one in the billing portal, later invoices are charged to it automatically. Full terms: Commit to Buy.
Table of Contents #
- Turn It On
- Commit to a Listing
- Make an Offer
- Pay on eBay
- Turn It Off or Change Billing
- Troubleshooting
Turn It On #
Everyone sees the Commit to Buy button on eligible listings. Until you opt in, clicking it only offers the enrolment. One-time setup, three steps in one dialog. Connect your eBay account first (Settings → eBay Account).
1. Open Settings → Commit to Buy and click Enable Commit to Buy. You can also click Opt in to Commit to Buy when a Purchase Preview offers it. #
2. Terms. Read how it works and click Accept & continue. Every purchase still needs your confirmation. #
3. Billing. Enter a billing email and a card, then click Validate card. Stripe holds the card. This is a $0 check, not a charge. #
4. eBay account. Confirm which connected eBay account purchases go on. You will see “You’re set up”. Click Done. #
Commit to a Listing #
1. Eligible listings show a green Commit to Buy button on the card. Click it. #
Listings that cannot be bought in one step show Go to Checkout instead. The Commit To filter above the results counts the commit-eligible listings and can show only those.
Commit to Buy isn’t offered on an auction with no Buy It Now price. The standard item window shows Commit to Buy: not eligible, and Go to Checkout on the card or in that window opens the listing on eBay, not eBay checkout. An auction that still shows a Buy It Now price can offer Commit to Buy.
You can still bid on an auction without leaving the app: in the item window, switch to the eBay view and press Place bid. It works on running eBay US auctions priced in US dollars and uses your connected eBay account; on any other running auction the button reads Place bid on eBay and opens the listing on eBay. More in the uBuyAssist help.
2. In the Purchase Preview check the eBay account, the quantity and the price, then click Buy It Now. #
The total shown is the item price only. eBay adds shipping and tax when you pay. If shipping reads “Not quoted”, eBay did not return a rate for the listing.
Some sellers hide how many they have left, and eBay then shows “More than 10 available”. On such a listing, All is greyed out, and you set the quantity with + or by typing it. With more than 1, the Preview says how many units you are committing to. eBay still tells uBuyFirst how many are left on such a listing, so if you ask for more, the Preview says “Not that many available” and Buy It Now stays off until you pick fewer. If eBay gives no count at all, eBay refuses the purchase instead and the app asks you to try fewer.
3. “Commit placed” means the order now exists on eBay, unpaid. Click Done. #
Each Commit is a Binding Purchase.
Cancelling afterwards is between you and the seller on eBay. Cancelled orders are never charged the usage fee.
Go to Checkout is Still There.
Every Purchase Preview also has Go to Checkout, which opens eBay checkout in your browser at no fee. Use it for anything the app calls “Not eligible”. On the card or in the item window for an auction with no Buy It Now price, Go to Checkout opens the listing on eBay instead.
Make an Offer #
You can send a Best Offer on an eBay listing from the web app.
The Offer button shows on a result card, and Make Offer shows on the listing page, for listings that accept Best Offers.
In-app offers work on eBay US listings priced in US dollars, and on listings priced in British pounds, euros, Canadian dollars, Australian dollars, Swiss francs or Polish zloty. The offer is made in the listing’s own currency, at the amount you type. A listing priced in any other currency, or one that is Buy It Now only, has no Offer button. Neither does a listing priced and shown in US dollars that was found by a search on an eBay site other than eBay US (for example an eBay Motors search), or whose eBay site the app can’t tell.
A listing priced in US dollars that another eBay site, such as eBay UK, shows in its own currency can take an offer too. The offer dialog then shows the price in US dollars, and your offer is made in US dollars.
A euro listing that eBay places on eBay Belgium can’t take an in-app offer: the dialog says it cannot tell which eBay site the listing is on, so make your offer on eBay.
On a listing in one of the other currencies above, and on a US-dollar listing shown in another currency, the dialog checks the listing with eBay each time it opens, once your eBay account is connected. It says “Reading the seller’s price on eBay…”, and List price shows a dash until the price is read, and stays a dash if it can’t be read. The List price in the dialog can differ from the card: the card may show a converted or older price, or, on eBay UK, a private seller’s price with eBay’s Buyer Protection fee included. Your offer starts from the seller’s own price.
Subtract shipping is greyed out, reading Subtract shipping (unavailable), when the shipping cost is not known, and also when the card shows the shipping in a different currency from your offer, for example a US-dollar listing shown in pounds on eBay UK.
To send an offer you need a connected eBay account (Settings → Account → eBay Account); you do not need to turn on Commit to Buy.
An offer is binding: if the seller accepts it, you have bought the item at your offer price, and you pay for it on eBay.
uBuyFirst charges no fee on an offer; the 1% usage fee applies to Commit to Buy purchases only.
1. On a listing that accepts offers, click Offer on the card, or Make Offer on the listing page. If your eBay account is not connected yet, the dialog says “Connect your eBay account to submit a Best Offer on this listing.” Connect it, then open the offer again. #
2. Your first offer starts at the full list price; after that, the dialog starts at the percentage of your last offer. Type an Offer Price per Item or an Offer Percentage of the list price; the other one follows, and Offer Price Total shows the whole offer. Change Offer Quantity if the listing has more than one. #
3. Optional: tick Subtract shipping to take the listing’s shipping cost off your offer; it is greyed out when the shipping cost is not known. Write a Message to Seller if you want (up to 250 characters). To keep it for next time, click + next to Messages before you pick a template, give it a Message alias and click OK; pick it later from Select a template. #
4. Click Make Offer. “Offer submitted.” means eBay has your offer; if eBay answers straight away, the status is shown, for example “Offer declined. Increase your price and try again.” #
Pay on eBay #
Open eBay, go to My eBay → Purchases and pay the order under Unpaid. Pay within the seller’s window, or the seller can cancel the order.
Turn It Off or Change Billing #
Settings → Commit to Buy shows whether it is enabled, with Turn off and Manage billing in Stripe. Under Buying Actions you can switch Commit to Buy on or off per connected eBay account and pick the default purchase account.
The usage fee is invoiced once a month. If you tick Save payment details when paying an invoice, or add a card with Manage billing in Stripe, later invoices are charged to that card automatically. Remove the card any time to go back to paying by hand. The card you add when you turn Commit to Buy on is only checked, not charged.
Turn off blocks new commits for every account right away. Your connected-account settings and card stay on file. Turning it back on means going through the enrolment again (terms, billing, account).
Troubleshooting #
| What you see | Why | What to do |
|---|---|---|
| Card shows Go to Checkout, not Commit to Buy | The listing is not eligible for one-step buying. | Use Go to Checkout, or set the Commit To filter to show eligible listings only. |
| Commit to Buy button opens an opt-in prompt | You are not enrolled yet, or Commit to Buy is turned off. | Click Opt in to Commit to Buy, or check Settings → Commit to Buy. |
| Preview says “Not eligible” | The listing cannot be bought in one step (auction with no Buy It Now price, immediate payment required, or already sold). | Use Go to Checkout. |
| Order total on eBay is higher than the preview | The preview shows the item price. Shipping and tax are added by eBay. | Check the total on eBay before paying. |
| Questions about the fee or an invoice | Invoices come from Stripe once a month. | See Commit to Buy or contact support. |
“Make Offer in uBuyFirst does not support listings priced in …, so make your offer on eBay.” The listing is priced in a currency in-app offers don’t support; the app names it by its three-letter code, for example JPY for Japanese yen. You can see this in the item window, in the Make Offer dialog after it checks the listing with eBay, or after you click Make Offer at the bottom of the offer dialog to send the offer. Make the offer on eBay itself. If the app cannot tell the listing’s currency at all, it says “We could not tell which currency this listing is priced in, so make your offer on eBay.”
“This listing is priced in …, not …, so the offer was not sent. Make your offer on eBay.” Just before sending, the app checked the listing with eBay and found it priced in a different currency from the one in the offer dialog, for example when the card shows US dollars but the seller priced the listing in another currency. Nothing was sent, and trying again in the app won’t help; make your offer on eBay.
“We cannot tell which eBay site this listing is on, so make your offer on eBay.” The app could not match the listing to an eBay site it can send offers on, as with a euro listing that eBay places on eBay Belgium. Nothing was sent; make your offer on eBay.
“Could not read this listing’s price on eBay. Try again shortly.” The dialog could not get the seller’s price from eBay just now; close it and open the offer again in a moment.
“We could not read the seller’s price from eBay, so make your offer on eBay.” eBay answered without the seller’s price for this listing; make your offer on eBay.
“Too many price checks. Try again shortly.” The Make Offer dialog was opened too many times in a short time (about 10 a minute for your account; each opening on a listing priced or shown in another currency counts, including reopening the same one). Nothing was sent. Wait a minute, then close the dialog and open it again.
“Connect your eBay account to make offers.” Connect or reconnect your eBay account in Settings → Account → eBay Account, then send the offer again.
“Too many offers. Try again shortly.” The app limits how many offers you can send in a short time; wait a moment and send again.
“This listing is no longer available.” The listing has ended or sold, so it no longer takes offers.
