E-mail settings for the price aggregator

For the site - aggregator of availability and prices on the topic of retail online stores of weapons, accessories and ammunition (US) https://bestguns.net made an automated email notification for two types of events: "Back to Stock" and "Price Alert" (Price Alert).
Created letters under key (text, design, adaptive layer), set the sending after events, accompanied the integration of the MailerLite mailing service and the site (TZ, documentation, testing and deposit).