The core changes in Amazon Seller Central in 2026 are not just a "new interface." Operation paths, account login, Listing rules, AI tools, and third-party tool integration are all being adjusted simultaneously. The biggest impacts on daily operations: the new Seller Central is gradually becoming the default backend, and old version entry is closing; high-frequency feature locations have changed; some automation scripts and third-party tools may be affected.

Major Changes in the New Backend

Operational Actions to Prioritize for Review

1. Log in to all active stores and confirm whether you have entered the new Seller Central. Record new paths for customer service, orders, advertising, inventory, returns, performance, etc.

2. Update team SOPs and operational documents, especially processes used by remote operations, outsourced customer service, and ad optimizers, to avoid still following old menu navigation.

3. Check Passkeys configuration. Bind passkeys separately for primary and secondary accounts to avoid login interruptions caused by multiple people sharing the same device.

4. Review third-party tools and automation scripts, especially tools that scrape backend pages, auto repricing, automatic price adjustment, and bulk advertising operations, and re-verify compatibility.

5. Recheck active Listings, focusing on whether titles exceed 75 characters, whether variation relationships are normal, and whether AI-generated materials are labeled as required.

6. Retrain the team using the new workspace areas such as "Products, Supply Chain, Orders, Finance, Marketing, Account Health" as the new training framework, rather than the old menu structure.

Current Risk Points Worth Attention

· The old backend will not be retained long term. Do not treat "switching back to classic view" as a long-term solution.

· Multi-user account management risk is rising. After the forced switch to Passkeys, teams that do not configure secondary user permissions in advance are more likely to experience login interruptions.

· Tools that rely on page structure for automation are most sensitive. After the page redesign, data extraction errors, operation failures, or incorrect ad adjustments may occur.

· Listing titles and variation uploads are high-impact compliance items. Failure to adjust may affect search display, ad conversion, and new listing efficiency.

If your team manages many stores, it is recommended to run through the new backend separately for US, Europe, and Japan sites first, take screenshots of high-frequency operation paths for archive, then update the operational manual and permission configuration.