Advanced Guides Overview
Advanced guides for power users, platforms, and enterprises building mission-critical messaging systems.
Topics
Performance Optimization
Rate limiting, connection pooling, caching, and high-throughput patterns
10DLC Registration
Register your business and campaigns with TCR to send SMS to US numbers
Compliance & Regulations
GDPR, TCPA, and country-specific compliance requirements
API v2 to v3 Migration
Migrate from legacy v2 API to the current v3 API
Multi-Tenant Architectures
Patterns for platforms and ISVs managing multiple customers
These guides assume familiarity with Sent fundamentals. If you're new, start with the Quickstart and Core Concepts.
Production Checklist
Pre-launch checklist for Sent webhook handlers: HTTPS and signature verification, idempotency, monitoring, error handling, scaling, and a runbook template.
Performance optimization: high throughput on the Sent API
Optimize Sent API throughput: stay under the 200 requests per minute rate limit, batch up to 1,000 recipients per request, cache reads, and queue sends.