# MessageDesk Support Docs ## Docs - [MessageDesk API Reference Introduction](https://docs.messagedesk.com/api-reference/introduction.md): Preview the upcoming MessageDesk API. Join the 2026 waitlist for early access to programmatic SMS messaging endpoints and integration tools. - [Carrier Registration Overview](https://docs.messagedesk.com/carrier-registration/overview.md): Understand A2P 10DLC and toll-free carrier registration in MessageDesk. Why it's required, who must register, what it costs, and how to get approved fast. - [SMS Privacy Policy Requirements](https://docs.messagedesk.com/carrier-registration/privacy-policy-terms-conditions.md): Write and publish an SMS privacy policy that meets A2P 10DLC and toll-free verification requirements. Includes required sections, examples, and templates. - [Submit A2P Carrier Registration](https://docs.messagedesk.com/carrier-registration/submit.md): Submit your A2P 10DLC and toll-free carrier registration in MessageDesk. Step-by-step guide to brand info, use case selection, and approval timing. - [Contact Us](https://docs.messagedesk.com/contact-us.md): Get in touch with MessageDesk by phone, email, or chat to report a bug, ask product questions, request a new feature, or get billing support. - [Anonymous opted-out and blocked contacts](https://docs.messagedesk.com/contacts/anonymous-opt-out-blocked.md): Manage anonymous, opted-out, and blocked contacts in MessageDesk. Learn how each list works, when contacts move between them, and how to unblock or restore. - [Create, Delete, Filter & Import Contacts](https://docs.messagedesk.com/contacts/create-import.md): Create, delete, filter, and import MessageDesk contacts one at a time or in bulk via CSV. Covers required formats, validation rules, and import limits. - [Download & Install Apps](https://docs.messagedesk.com/get-started/install-apps.md): Download MessageDesk for iOS, Android, and as a desktop progressive web app. Step-by-step install instructions for every platform your team uses. - [Introduction to MessageDesk](https://docs.messagedesk.com/get-started/introduction.md): Discover what MessageDesk is, why teams choose our shared SMS inbox over email and chat tools, and how to onboard your team in minutes. - [Join an Existing MessageDesk Workspace](https://docs.messagedesk.com/get-started/join-workspace.md): Accept your MessageDesk email invitation, create a user profile, set up your account, and start collaborating in your team's shared SMS inbox today. - [Connect a Landline or VoIP Number to MessageDesk](https://docs.messagedesk.com/get-started/phone-numbers/landline-voip.md): Text-enable your existing landline or VoIP number with MessageDesk. Step-by-step setup, supported carriers, and what to expect during the porting process. - [Connect Phone Lines to MessageDesk](https://docs.messagedesk.com/get-started/phone-numbers/overview.md): Compare phone number options for MessageDesk—local 10DLC, toll-free, landline, VoIP, and Twilio BYOC. Pricing, setup steps, and registration timelines. - [Purchase a Text-Only Number with MessageDesk](https://docs.messagedesk.com/get-started/phone-numbers/purchase-new.md): Buy new local 10DLC text-only phone numbers in MessageDesk by area code. Pricing, monthly fees, and step-by-step purchase instructions for your team. - [Connect Toll-Free Numbers for SMS Messaging](https://docs.messagedesk.com/get-started/phone-numbers/toll-free.md): Purchase or port toll-free phone numbers with MessageDesk for high-volume SMS. Includes verification requirements, pricing, and approval timelines. - [Connect Twilio Phone Numbers to MessageDesk](https://docs.messagedesk.com/get-started/phone-numbers/twilio.md): Bring your own Twilio phone numbers (BYOC) to MessageDesk. Step-by-step setup, API key configuration, and how to migrate existing Twilio messaging. - [Sign Up for MessageDesk](https://docs.messagedesk.com/get-started/sign-up.md): Sign up for a free MessageDesk account, create your team workspace, and start your 30-day trial of shared SMS inbox features in minutes. - [Comments, Mentions & Reactions](https://docs.messagedesk.com/inbox/comments-mentions.md): Collaborate inside MessageDesk SMS conversations with private team comments, @mentions, and emoji reactions to keep internal context visible. - [Filter, search & sort conversations](https://docs.messagedesk.com/inbox/filter-search-sort.md): Find the right threads fast. This guide shows you how to search messages, sort your list, and build custom filters you can share with your team. - [Organize Inbox Conversations with Labels](https://docs.messagedesk.com/inbox/labels.md): Create, apply, and manage color-coded labels in MessageDesk to organize SMS conversations, build saved filters, and group threads across your team workspace. - [Multi-Select Quick Actions](https://docs.messagedesk.com/inbox/multi-select-quick-actions.md): Bulk-manage SMS threads in MessageDesk. Multi-select conversations to close, assign, label, archive, or delete dozens of messages in a single click. - [Open, Close & Assign Conversations](https://docs.messagedesk.com/inbox/open-close-assign.md): Manage MessageDesk SMS conversation states. Open, close, reopen, and assign threads to teammates so nothing slips through and every message gets answered. - [Shared Team SMS Inbox Overview](https://docs.messagedesk.com/inbox/overview.md): Tour the MessageDesk shared inbox—how it groups SMS threads, surfaces team activity, and keeps everyone aligned with assignments, labels, and filters. - [Grammarly Integration for SMS Composition](https://docs.messagedesk.com/integrations/grammarly.md): Install the Grammarly browser extension to catch typos, grammar mistakes, and tone issues while composing SMS messages and templates in MessageDesk. - [MessageDesk Zapier Integration (Beta)](https://docs.messagedesk.com/integrations/zapier.md): Automate SMS workflows by connecting MessageDesk to 6,000+ apps with Zapier. Triggers, actions, and recipe ideas for syncing CRM, forms, and ticketing tools. - [Message Delivery Errors & Troubleshooting](https://docs.messagedesk.com/messaging/delivery-status-errors.md): Diagnose SMS delivery failures in MessageDesk. Decode every status code, find root causes for blocked or undelivered texts, and fix common carrier errors. - [Send and Receive MMS Media Files](https://docs.messagedesk.com/messaging/media.md): Send and receive images, videos, PDFs, and documents through MessageDesk MMS. Supported file types, size limits, and best practices for delivery success. - [Compose New Messages](https://docs.messagedesk.com/messaging/new-message-compose.md): Compose new SMS and MMS messages in MessageDesk. Send to single contacts, groups, or filtered lists with templates, attachments, and personalization tags. - [SMS, MMS & Group Messaging Overview](https://docs.messagedesk.com/messaging/overview.md): Explore the messaging types MessageDesk supports—1:1 SMS, MMS, group texts, scheduled sends, and templated broadcasts—plus throughput and channel rules. - [Restricted Messaging Types](https://docs.messagedesk.com/messaging/restrictions.md): Avoid SMS rejections by understanding restricted SHAFT-C content—sex, hate, alcohol, firearms, tobacco, and cannabis. Stay compliant with carrier rules. - [Scheduled Text Messages](https://docs.messagedesk.com/messaging/scheduled-messages.md): Schedule SMS messages in MessageDesk for any future date and time, then edit, cancel, or reschedule them from your inbox before they send. - [Templates and Personalization Tags](https://docs.messagedesk.com/messaging/templates-tags.md): Build and reuse SMS templates in MessageDesk with personalization tags like first name, custom fields, and dates so every text feels written for one person. - [From MessageDesk Reach to Inbox](https://docs.messagedesk.com/migration/messagedesk-reach-to-inbox.md): Migrate from MessageDesk Reach to Inbox with a step-by-step plan. Move contacts, history, and templates with minimal downtime and full team confidence. - [Relays: Setup & Technical Guide](https://docs.messagedesk.com/relays/create-edit.md): Build MessageDesk Relays step-by-step—configure triggers, conditions, actions, delays, and active hours. Troubleshooting tips and a complete FAQ included. - [MessageDesk Relays Automation Overview](https://docs.messagedesk.com/relays/overview.md): Learn what MessageDesk Relays are, how triggers and actions work, and see common SMS automation examples like auto-replies, follow-ups, and webhook events. - [Send Webhook Relay Action Setup](https://docs.messagedesk.com/relays/webhooks.md): Configure the Send Webhook relay action to push MessageDesk SMS events to your endpoints. Setup, payload structure, headers, and retry behavior explained. - [MessageDesk Keyboard Shortcuts Reference](https://docs.messagedesk.com/resources/keyboard-shortcuts.md): Speed up SMS workflows with the full list of MessageDesk keyboard shortcuts—navigation, conversation actions, search, compose, and inbox view commands. - [MessageDesk Plans, Pricing & Features](https://docs.messagedesk.com/resources/pricing.md): Compare MessageDesk plans and pricing—free tier, paid tiers, message volume limits, included features, and add-ons for shared SMS team inboxes. - [Data Security, Compliance & HIPAA](https://docs.messagedesk.com/resources/security-compliance-hipaa.md): What you can safely send by SMS, HIPAA do's & don'ts, and how MessageDesk secures your data—including our SOC 2 roadmap and Trust Center. - [Get Help from the MessageDesk Support Team](https://docs.messagedesk.com/resources/support.md): Reach the MessageDesk support team by email, live chat, or phone. Get fast answers about setup, billing, carrier registration, and SMS troubleshooting. - [Billing & Subscription Management](https://docs.messagedesk.com/settings/account/billing-subscriptions.md): Update payment methods, change plans, view invoices, and manage MessageDesk billing and subscription settings for your team workspace and add-on services. - [Tenant Management](https://docs.messagedesk.com/settings/account/tenant-management.md): Manage your MessageDesk tenant company profile and create new workspaces for different teams, brands, or business units under a single account. - [30-Day Free Trial Overview](https://docs.messagedesk.com/settings/account/trial-terms.md): Understand the MessageDesk free forever plan and 30-day full-feature trial. What's included, message limits, billing terms, and what happens after expiration. - [MessageDesk Compliance Center](https://docs.messagedesk.com/settings/compliance-center.md): Manage SMS compliance in MessageDesk—configure opt-in confirmations, STOP and HELP keywords, signatures, and double opt-in flows for TCPA-safe messaging. - [Import, Export & Search Message History](https://docs.messagedesk.com/settings/data-center.md): Import contacts and historical SMS messages, then search, filter, and export your full MessageDesk message history—all from the Data Center. - [Password Reset and Account Security](https://docs.messagedesk.com/settings/personal/account-security.md): Reset your MessageDesk password, enable two-factor authentication, manage active sessions, and follow security best practices to keep your account safe. - [Personal Inbox Appearance, Layout & Signature](https://docs.messagedesk.com/settings/personal/inbox-preferences.md): Personalize your MessageDesk inbox view—pick a light or dark theme, choose navigation layout, set conversation density, and add a personal SMS signature. - [Personal Notification Preferences](https://docs.messagedesk.com/settings/personal/notifications.md): Customize MessageDesk notification preferences for email, mobile push, and browser. Set quiet hours, mute conversations, and tune alerts for new messages. - [Personal Profile Settings Overview](https://docs.messagedesk.com/settings/personal/overview.md): Manage your personal MessageDesk profile in one place—name, avatar, contact details, security, notifications, and inbox appearance preferences. - [Team Workspace Messaging Analytics](https://docs.messagedesk.com/settings/workspace/analytics.md): Track SMS performance metrics in MessageDesk—message volume, response times, channel-level stats, and per-user activity reports for your team workspace. - [Custom Fields for Contact Data](https://docs.messagedesk.com/settings/workspace/custom-fields.md): Create custom contact fields in MessageDesk to store data like account ID, renewal date, or product interest, then merge values into SMS templates. - [Inbox Settings (Labels, Message Templates & Relays)](https://docs.messagedesk.com/settings/workspace/inbox-settings.md): Configure workspace-wide MessageDesk inbox settings—shared labels, message templates, relay automations, and default appearance options for every team member. - [Workspace Settings Overview](https://docs.messagedesk.com/settings/workspace/overview.md): Tour MessageDesk workspace settings—manage organization details, branding, time zone, default behaviors, and admin controls for your team account. - [Manage Phone Numbers and Lines](https://docs.messagedesk.com/settings/workspace/phone-management.md): Add, rename, organize, assign, and remove connected phone numbers and lines in your MessageDesk workspace. Best practices for naming and team routing. - [Team Roles, Permissions and Invites](https://docs.messagedesk.com/settings/workspace/team-management.md): Invite users to your MessageDesk workspace, accept invitations, and manage team access with admin, manager, and agent roles plus granular permissions. ## OpenAPI Specs - [openapi](https://docs.messagedesk.com/api-reference/openapi.json) ## Optional - [Status](https://status.messagedesk.com/) - [Changelog](https://app.getbeamer.com/messagedesk/) - [Free Tools](https://www.messagedesk.com/free-tools)