Short answer: a US startup should choose its European SMS alert API by the cost of a failed alert, not the cheapest advertised send; start with one transport behind an adapter, but require route tests, sender registration evidence, inbound proof, and an application-owned delivery ledger. Operati...
Source: [Dev.to](https://dev.to/peterparker8991/a-us-startup-failure-budget-for-european-sms-alert-apis-gdpr-inbound-registration-4aia)