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SMS Guides and Troubleshooting

Delivery callbacks

Delivery callbacks help businesses track what happens to each SMS they send by feeding delivery information back into their systems in near real time. They give teams a straightforward view of which texts reached customers and which did not, so communication records stay accurate and operations stay in sync. This guide explains how delivery callbacks function in a typical messaging setup and when they are most useful in everyday workflows.

Webhooks

Webhooks let business texting systems talk to each other in real time so message events automatically flow between tools instead of needing manual updates. In everyday terms, they quietly pass SMS activity like replies or status changes to your CRM or other apps so workflows stay aligned with what customers are actually doing. This guide outlines how Webhooks fit into SMS operations and when they make the most sense to use in your messaging setup.

API rate limits

API rate limits help businesses control how quickly their systems send and receive SMS through an API connection so texting stays stable as volume grows. They act like a traffic governor that balances speed and capacity, reducing overload, failed sends, and carrier pushback during busy periods. This guide introduces how API rate limits work in practice for business texting and when to adjust them to fit real campaign needs.

API authentication

API authentication helps businesses control who can send SMS through their systems so that only trusted applications and teams are allowed to trigger outbound messages. By verifying each request before a text is sent, it reduces misuse, keeps customer conversations protected, and makes sure message traffic stays aligned with your broader CRM and communication setup. This guide outlines the basic ideas behind API authentication, how it fits into real SMS workflows, and when it matters most for business texting.

SMS APIs

SMS APIs let businesses send and manage text messages directly from their software, removing the need for manual typing or individual sends. They make it easier to handle everything from alerts to reminders in a consistent way, using your existing data and rules. This guide introduces how an SMS API fits into everyday workflows and when it's the right tool for business texting.

SMS gateways

SMS gateways help businesses handle large volumes of SMS by connecting their tools to mobile networks in a controlled, predictable way. They simplify how texts move from a system to a phone, so teams can focus on message content instead of network details. This guide outlines how SMS gateways fit into everyday operations and when they are the right choice for business texting.