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A2P 10DLC Campaign Approval Best Practices

Learn how to get your A2P 10DLC campaign approved on the first try—what to include, what to avoid, and how to show consent, sample messages, and clear use-case details.

Last updated: May 26, 2026

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On this page

  • A2P 10DLC Campaign Approval Requirements
  • Data Accuracy and Consistency Best Practices
  • Collecting Consent Best Practices
  • Opt-In Methods
  • 1. Verbal Opt-In
  • 2. Web Form Opt-In
  • 3. Paper Form Opt-In
  • 4. Text Message Opt-In
  • 5. Mobile QR Code Opt-In
  • Double Opt-In in A2P 10DLC
  • How Double Opt-In Works
  • Why Double Opt-In is Important in A2P 10DLC
  • Campaign Registration Recommendations
  • Campaign Type
  • Campaign Description
  • How do end-users consent to receive messages?
  • Sample Message
  • Opt-in Keywords
  • Opt-out Keywords
  • Opt-out Confirmation Message
  • Help Keywords
  • Help Message
  • Campaign Failure/Rejection Reasons
  • Failure/Rejection Reason #1: Message Flow
  • Failure/Rejection Reason #2: Invalid Website URL
  • Failure/Rejection Reason #3: Incorrect Sole Prop Brand Registration
  • Failure/Rejection Reason #4: Unknown Reason
  • Failure/Rejection Reason #5: Inconsistencies Between Sample Message and Use Case
  • Failure/Rejection Reason #6: The campaign submission has been reviewed and rejected due to issues verifying the Call to Action (CTA) provided for the campaign.
  • Frequently Asked Questions
  • Related Articles

In this folder

  • Phone System Pricing & Billing Guide
  • What is LC (Lead Connector) Phone System?
  • Number Intelligence - Spam Detection, Caller ID & SMS Validation
  • Voicemail For Company And For Users
  • Getting Started with A2P 10DLC
  • Call Forwarding to Your Bizura Phone Number
  • How do I migrate my agency and sub-account over to LC Phone?
  • Why is your account suspended
  • Regulatory Bundle and Address Creation for Sub-Accounts
  • How to Disable LC Phone System for Subaccount/Location (LC to Twilio)
  • Phone System Messaging Analytics Overview
  • Know Your Customer (KYC) in the United Kingdom
  • How to Enable Call Transcriptions for Recorded Calls
  • How to Set Up Verified Caller ID (Use your number for Voice Calls)
  • How to Configure SMS Compliance Settings
  • Physical VoIP Deskphones (SIP)
  • LC Phone System - Error Code and Warning Dictionary
  • Why You Can't Delete a Twilio Subaccount from the Bizura?
  • KYC Verification on Persona — Best Practices
  • Custom Dispositions for Voice Calls
  • Avoiding Call Loops when routing calls to Internal Phone Numbers
  • How to Reduce Inbound Spam Calls
  • How to use Custom CSS to hide the Twilio error banner
  • Setting up webhooks to receive incoming calls, messages and status updates for calls (for Twilio users)
  • Understanding Default Phone Preferences for New Sub-Accounts
  • How to Create and Use Call Scripts in Web & App Dialers
  • The Phone Dialer Overview
  • Moving Phone Numbers: Migration Guide
  • 5% Stripe Markup Removed From All Phone System Charges
  • Call Events Not Working for Twilio

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