Amazon listing fix queue with competitor side-by-side

Build me an app my catalog manager works out of a few times a week to fix the Amazon listings that are quietly losing us sales. We have a few hundred SKUs, and listing problems go unnoticed for weeks because Seller Central spreads them across the Fix Your Products page, the listing quality dashboard and per ASIN edit screens, with no single prioritized queue and no competitor context. I want one screen that ranks the work, one pane that shows me what good looks like, and an editor that pushes the fix.

The main screen is a work queue of my listings, scored worst first. Build it from Search Listings Items in Amazon Seller Partner, filtered by status and issues, which is the operation designed for finding listings needing attention and surfaces suppressed, incomplete and policy flagged listings. On top of what Amazon reports, compute a content completeness score in the handler from Get Listings Item: missing or too few bullet points, a thin title, too few images, and empty backend search keywords. Each row shows the SKU and ASIN, a thumbnail, the issues Amazon reported, the completeness score with the specific gaps spelled out, and the listing's current state. Sort by the combined severity so the worst offenders are always at the top.

Selecting a listing opens a side by side pane. On the left, my live content from Get Listings Item: title, bullets, images and backend keywords. On the right, the top ranking competitor for the same keyword, found with Real-Time Amazon Data Search Products and expanded with Get Product Details, so I can compare title structure, bullet count and image count against what is actually winning that search. Below the competitor content, show that competitor's top reviews using Get Top Product Reviews so I can see which benefits buyers actually talk about and work them into my copy.

Use Get Top Product Reviews rather than Get Product Reviews. The top reviews operation returns the 8 publicly visible reviews with no cookie, while the full paginated version requires a logged in Amazon session cookie that I will not have.

Fire the competitor lookups when I select a listing, not eagerly for the whole queue. Read limits are generous on the listing side at roughly 5 requests per second for Get Listings Item and Patch Listings Item, but Search Catalog Items is only 2 requests per second with a burst of 2, so any queue wide prefetch will throttle. If you use Search Catalog Items to enrich my own ASIN with catalog data, keep it to the selected listing for the same reason.

In that same pane, give me an editor where I rewrite the title and bullets with the competitor content and review themes still visible while I type. Pushing a change goes through Patch Listings Item behind a confirmation step that shows a clear before and after of exactly what will change. Patch Listings Item takes JSON Patch operations, so only include the attributes I actually changed. Before every push, save the previous version so I can revert a bad edit back to the exact prior title and bullets.

Amazon accepts a listing patch asynchronously and the submission can still fail validation downstream, so never optimistically mark a listing fixed. Show the submission status returned by the push, then re-fetch the listing with Get Listings Item and reflect the real result, including any new issues Amazon now reports on it.

Persist each listing's state as needs work, fixed or ignored, along with who pushed the last fix and when, and the saved previous version for revert. The queue has to stay clean between sessions, so fixed and ignored listings drop out of the default view with a filter to bring them back. Because more than one person works this catalog, show who is currently working a listing and warn me before I open an ASIN someone else already has open, so two people never work the same ASIN.

Let me pick which marketplace to work in, and set the comparison keyword per listing, defaulting to the main keyword inferred from my own title.