Astra by Sellrbox is an Amazon PPC automation platform designed for established private-label brands with large product catalogs. It automates full-funnel campaign creation, daily bid and keyword optimization, negative targeting, and product-level advertising management across many ASINs. The platform combines automated execution with strategies developed by experienced Amazon advertising operators, while providing performance reporting, guided onboarding, and access to ongoing strategy support. Astra is intended for brands that want to scale advertising across their catalog without managing each campaign manually, and its pricing is based on advertising revenue rather than total ad spend.