eSputnik is a web-based Marketing Automation Service that allows you to manage cross-channel messaging campaigns via Email, SMS, Web Push, Viber and other instant messengers. Features for advanced eCommerce projects: – dynamic content depending on stock availability, geo, browsing history or by feed – conditional dynamic blocks targeted on additional data enrichment – dynamic message content queue prioritization based on previous behavior – messaging frequency control – high server/ip reputation for inbox deliverability – ​​high delivery speed for flash sales