Optimization and synchronization of global sales on Amazon

Task:
Fix the chaotic publication of listings, stabilize presence in the EU and US markets, set up centralized inventory and content management.
Key issues that were resolved:
Regional desynchronization: Elimination of listing conflicts between local European marketplaces (Amazon.de, .fr, .it, .es).
SEO optimization for different markets: Adapting content to A9/A10 algorithms considering local language and search peculiarities.
Technical audit: Cleaning the account of "junk" listings that negatively affected Account Health.
Completed work (your "tech stack"):
1. Account health audit: Checking Account Health Rating, resolving Buy Box issues and listing rights.
2. Catalog structuring: Implementing Parent/Child listing methodology to avoid traffic cannibalization.
3. Localization and SEO:
Adapting keywords for the English-speaking market (US) and local EU languages.
Setting E-E-A-T parameters in listing content to increase conversion.
4. Automation (your "trick"): Implementing solutions for inventory synchronization to avoid "Out of Stock" situations in one market while active sales are ongoing in another.
5. Setting up Amazon Advertising (PPC): Launching campaigns with minimal ACoS through clear product segmentation.
Result:
Stability: Stopping the "flying away" of listings, ensuring their visibility on all target platforms.
Scalability: Created a guide/template for entering new markets within the EU without losing positions.
Transparency: The client received clear analytics for each region separately.