# See the delivery trend. Find the failing route.

Compare SMS outcomes across destinations and carriers. Move from a change in the chart to the messages and receipts that explain it.

## Every message. A route to investigate.

Follow delivery over time. See which carriers account for failures.

[Explore SMS analytics](/docs/guides/sms/tracking-and-metrics)

## Start with the pattern. Check the message.

Understand SMS delivery by carrier and destination.

### Compare equivalent ranges.

Review accepted volume, delivery, failure and latency over the selected interval. Keep the counts and time window together when comparing a new release or campaign.

### Find the carrier or destination.

A country-level average can hide a single route with poor outcomes. Use the available breakdowns to choose where to investigate, then inspect representative message records.

### Read the carrier evidence.

A delivery receipt is the carrier’s reported outcome. Segments and priced cost components explain different parts of the operation. A healthy aggregate does not prove every handset received or read a text.

[Explore SMS analytics →](/docs/guides/sms/tracking-and-metrics)

## Keep building with SMS.

Revisit route preparation, reconcile events, and understand the segment count behind each send.

[Global delivery Understand destination support before sending. →](/docs/guides/sms/overview)

[Webhooks React to incoming texts and delivery changes. →](/docs/guides/sms/events)

[Encoding & segments See how characters affect message length and segment count. →](/docs/guides/sms/smart-encoding)

[Explore SMS →](/sms-api)

## Escala sin perder el control.

Organiza equipos en espacios de trabajo, controla el acceso a la API y rastrea cambios en los registros de auditoría.

[Workspaces](/docs/guides/workspaces)[Team roles](/docs/guides/users-teams-roles)[API authentication](/docs/guides/authentication)
[Explore Enterprise](/enterprise)

## Start with SMS. Build across channels with Bird.

[Get Started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Fsms%2Fonboarding) · [Contact Sales](/demo?product=sms)

[Email](/email-api) · [SMS](/sms-api) · [WhatsApp](/whatsapp-api) · [Apple Messages](/apple-messages-api) · [Voice](/voice-api)



## Related resources

- [What does a delivery receipt tell you?](/explained/sms/what-is-a-delivery-receipt) (answer)
- [Operate messaging reliably](/learn/paths/reliability) (course)

[Get an implementation brief](/learn/workspace?topic=sms-reporting)