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DocumentationConcepts, walkthroughs, embeddable UI, and operational setup.SDKsPython, TypeScript, Ruby, and Elixir client libraries.API ReferenceAuth, endpoints, example payloads, and webhook event schemas.ResourcesCompliance, changelog, deprecations, and glossary.

What is Surge How Surge is Organised

Send Your First Message

Register Your Business

Register via API Canonical Schema Reference Register via Dashboard Building on Surge: One Account per Customer Avoiding Rejection: Patterns from Real Registration Reviews Sole Proprietor Path Toll-Free Verification Fixing a Rejected or Changes-Needed Campaign

Sending Messages

Send to One Person Send to Many People Ongoing Conversations Track Message Delivery Handle Failures

Receiving Messages & Webhooks

Webhook Events Two-Way Messaging Patterns

Purchasing a Number Importing a Number International Numbers Attaching a Number to a Campaign

Send and verify a code Usage patterns and delivery gotchas

Channels Roadmap

RCS and WhatsApp Voice

Embeddable UI Components

Working with End Users Inbox Component Conversation Component Unread Count Component Phone (dialpad)

SMS Segments & Encoding The Campaign Registry (TCR) and Becoming a CSP Consent Flows: How Users Opt In Required Disclosures and Opt-In Templates Deliverability

Sending Messages

Browse the sending messages pages in this section.

Handle Failures Ongoing Conversations Send to Many People Send to One Person Track Message Delivery

Sending Messages

Browse the sending messages pages in this section.

Handle Failures Ongoing Conversations Send to Many People Send to One Person Track Message Delivery

Last updated May 2, 2026

Fixing a Rejected or Changes-Needed Campaign

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