Linking a Number to Your A2P Campaign (Error 30034)

Error 30034 means the number you're sending from isn't linked to an approved A2P campaign — the campaign itself may be approved, but this specific number was never connected to it.

How to fix it

1. Go to Settings > Phone System > Phone Numbers.
2. Find the number that's failing and open its ⋮ menu.
3. Select Select A2P Campaign to Link.
4. Choose your approved campaign from the dropdown.
5. Confirm the number now shows a green A2P Verified label.

If linking doesn't clear the error

Check your registration type under Settings > Phone System > Trust Center. Sole Proprietor registrations are limited to a single local number per campaign — if you're trying to link a second local number under a Sole Proprietor brand, that's the actual cause, and linking will keep failing until you either register the additional number under its own campaign or upgrade to Standard registration (which requires a Tax ID/EIN). See Registering Your A2P Brand & Campaign.