What should businesses look for when choosing a Bulk SMS provider in Saudi Arabia?

Choosing the right Bulk SMS provider can significantly impact customer communication, especially for businesses that rely on OTPs, transactional notifications, appointment reminders, and marketing campaigns. With so many providers available, it's not always clear which features matter most.

Should businesses focus on delivery rates, direct operator connectivity, pricing, API integration, reporting, scalability, or customer support? How important are factors like message routing, delivery speed, data security, and compliance with local regulations in Saudi Arabia?

If you've worked with different SMS providers, what features or experiences helped you make the right choice? I'm looking for practical recommendations and real-world insights to better understand what separates a reliable enterprise messaging platform from the rest.