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(02) A2P 10DLC

A2P 10DLC Registration Guides for HighLevel

A2P 10DLC is the US carrier registration that business text messaging has to pass. These guides explain what each field in the HighLevel registration means and how to respond when a brand or campaign is rejected.

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  1. 01 HighLevel A2P Registration Checklist Tick through A2P 10DLC brand and campaign registration in HighLevel: EIN or sole proprietor, use case, samples, opt-in, website policies, fees and fixes for common rejections. Checked 30 Oct 2026

What this hub covers

  • Brand registration and verification
  • Campaign use cases and sample messages
  • Common rejection reasons and how to resubmit
  • Opt-in and consent wording