Edtech SaaS Notifications: Use Email First, SMS Only as Escalation Channel

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For edtech SaaS platforms handling post-payment notifications, experts recommend email as the primary channel for order receipts, with SMS reserved strictly for time-sensitive escalation scenarios. Leading email providers in contention include Resend, Postmark, and SendGrid, while Twilio and Plivo are the top SMS candidates. A unified email-and-SMS vendor contract can simplify credentials and billing, but is unsuitable when real-time, webhook-driven failover is required. Beyond provider fees, engineering teams are advised to account for a second cost ledger covering logs, status polls, metrics, and database records tied to each notification. Keeping metric labels bounded and storing only meaningful state transitions — rather than every poll result — are highlighted as the most impactful ways to control infrastructure costs.

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