For a SaaS app sending transactional SMS alerts, the operational constraint that changes the API choice is evidence: can the backend prove which notification it attempted, what delivery status the provider reported, and when each state transition was observed? That question applies to an e-comme...
Source: [Dev.to](https://dev.to/nathanielbrooks0360/choosing-an-sms-alerts-api-for-saas-delivery-status-across-2-regions-4ck4)