EcomSanity is an analytics and automation console for Amazon sellers. Connect Seller Central once with official SP-API OAuth. Every ~6 hours it syncs sales, FBA inventory, and Buy Box status, then surfaces stock risk, Buy Box drops, and inventory aging toward Amazon storage surcharge tiers. See PPC ACOS next to the same ASINs without replacing Seller Central as the campaign manager. Pro ($9.90/mo) automates Amazon’s official Request a Review via the Solicitations API (eligibility checks, one request per order). Free plan includes SP-API + metrics — no credit card.