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The Gate Scanner tells you if Amazon will let you sell a product. You give it a list of ASINs. It asks Amazon about each one and shows you a verdict. An ASIN is the ten-character code Amazon gives every product. A restriction check is one question sent to Amazon: “Can this seller list this product right now?” The scanner does not use Keepa tokens for this.
Gate Scanner first-run screen with the paste box, Recent scans card, and verdict legend

The Gate Scanner before your first scan. Paste on the left, recent scans and the verdict key on the right.

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Before you start

You need an Amazon seller account connected to SourceDock. Without one, the scan button stays off and the hint reads Connect an Amazon seller account to scan. A notice at the top says No Amazon account connected with a link to connect it. The SourceDockIQ Chrome extension is optional. You only need it for the Verify step. See Chrome extension.

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The verdicts

Every ASIN gets one of three verdicts. A fourth bucket, Errors, holds ASINs Amazon could not answer. The verdict key on the first-run screen says the same thing in short form.
An ASIN that was not checked is not an approved ASIN. If a scan stops early, the desk tells you how many were checked. Treat the rest as unknown.

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Add your ASINs

Type or paste into the big box. It accepts plain ASINs, Amazon product links, and whole supplier sheets. The scanner keeps every code that looks like an ASIN and drops the rest. Codes can be on new lines or split by commas. You can also drag a .csv, .tsv, or .txt file onto the box.
Gate Scanner with the From Vault panel open, showing a search box and a list of prospects with checkboxes

Picking Vault prospects to scan. Search, tick rows, or tick the top box to select all.

If you go over, the hint turns amber and reads 120 ASINs - your plan allows 50 per scan with an Upgrade link. The scan button stays off until you trim the list.

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Run the scan

1

Fill the box

Paste your list or pick from the Vault. The hint under the buttons shows 12 ready.
2

Click Scan

The button reads Scan 12 ASINs. It changes to Scanning… while the scan runs.
3

Watch the verdicts land

The page switches to the scan desk. Verdicts appear one by one as Amazon answers.

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Read the results

Gate Scanner results with filter chips for All, Approved, Needs approval, Blocked, and Errors above a table

A finished scan. Filter chips on top, the results table below, Export CSV in the footer.

Five chips sit above the table: All, Approved, Needs approval, Blocked, and Errors. Each shows its count. Click one to show only those rows. The menu icon at the end of the header row lets you hide, rename, or reorder columns. The footer shows the verdict count and a pager with 10, 25, 50, or 100 rows per page. Click Scan another on the status card to go back to the paste box. The card also notes that verdicts are cached for 4 hours.

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Verify with the extension

Needs approval means Amazon wants an application. Verify shows you what that application looks like without leaving the desk.
1

Connect the extension

Verify is off until the extension is connected. Then a green Extension connected pill sits next to the page title.
2

Click Verify on a row

The extension opens that listing in a new Seller Central tab. You click through the page yourself. The extension only reads the outcome you see. It never clicks for you.
3

Read the Auto approve column

While the check runs the row reads Checking… with an X to cancel. When it finishes you see a badge with a short confidence bar. It reads Auto-Approved, Documents Required, Info Required, or Not Accepting.
Some checks need you signed in to Seller Central. If you are not, the badge reads Not Signed In. A notice at the top says Sign in to Seller Central. Sign in, then click Verify again. A check that runs out of time reads Timed out with a Retry link.

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Export CSV

Click Export CSV in the table footer to download every verdict from the scan. The file has six columns: ASIN, Title, Brand, Status, Reasons, and Approval URL. The file name includes the date.

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Recent scans

The Recent scans card on the first-run screen keeps your last five scans. Each row shows the date, the ASIN count, and a small bar split by verdict. Click a row to load that list back into the paste box and see its ASINs. Click the circular arrow to scan that list again right away. Recent scans live in this browser tab only. Closing the tab clears them.

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If a scan fails

A notice reads This scan could not be completed when something fails before any ASIN is checked. Treat none of the ASINs as approved. Run the scan again.