A comprehensive guide to architecting a messaging solution for high deliverability, resiliency, and scalability is provided, covering key aspects such as throughput, compliance, optimization, data hygiene, link shortening and click tracking, user experience, monitoring health, and improvements over time. The guide emphasizes the importance of selecting the correct sender type based on throughput needs and compliance considerations, optimizing messages for technical and practical efficiency, and ensuring data accuracy to improve messaging metrics and detect issues promptly. By following this guide, businesses can establish a solid foundation for their SMS platform, mitigate common pitfalls, and achieve high deliverability rates, low opt-out rates, and a great user experience.