Error 30035 occurs when you try to send SMS from a newly registered U.S. A2P 10DLC number before carrier-level provisioning has fully completed. Even if the Brand and campaign are approved, the number may still need additional time before messaging is active across carrier networks.

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What Is Error 30035?

Error 30035 means the A2P registration process is not fully complete for the sending number.

The Brand and campaign may already show as approved, but the phone number can still be in a carrier propagation or provisioning period. During that time, SMS attempts may fail until the registration is fully recognized across carrier networks.


Key Benefits of Waiting for Provisioning to Complete

Allowing the registration to finish before testing helps prevent unnecessary delivery failures.

  • Fewer False Failures: Avoid testing while carrier provisioning is still in progress.

  • More Reliable Messaging: Start sending only after the number is fully active.

  • Clearer Troubleshooting: Distinguish a temporary propagation delay from an incomplete registration.

  • Better Campaign Launches: Reduce failed sends immediately after approval.


Common Causes of Error 30035

Error 30035 may occur when:

  • The A2P Brand and campaign were recently approved.

  • Carrier provisioning is still in progress.

  • The number has not fully propagated across carrier networks.

  • Messaging was attempted too soon after approval.

  • The campaign or number association is still incomplete.

  • The A2P registration is still partially under review.


How to Fix Error 30035

Start by checking the registration status and allowing time for carrier provisioning.

  1. Confirm the A2P Brand is approved.

  2. Confirm the A2P campaign is approved.

  3. Verify that the sending number is linked to the approved campaign.

  4. Check the number’s registration status.

  5. Wait up to 24 hours after approval for carrier provisioning to complete.

  6. Avoid repeated test messages during the propagation period.

  7. Retry after the full waiting period has passed.

  8. If the error continues, review the registration for incomplete or pending items.


Check the A2P Registration Status

Before sending, confirm that all registration components are complete.

Review:

  • Brand status

  • Campaign status

  • Phone number association

  • Number verification status

  • Any pending review notices

  • Any incomplete registration steps

An approved campaign does not always mean the number is immediately ready to send.


Allow Time for Carrier Propagation

Carrier systems may need time to recognize a newly approved A2P registration.

After approval:

  • Allow up to 24 hours for provisioning.

  • Avoid repeated testing during that period.

  • Do not assume a failure during propagation means the campaign was rejected.

  • Retry only after enough time has passed.

If the number was linked to the campaign after the campaign itself was approved, allow time after the number association as well.


Check the Number-to-Campaign Association

Error 30035 can also appear when the registration setup is incomplete.

Verify that:

  • The correct sending number is linked to the intended campaign.

  • The number is not associated with a different campaign.

  • The workflow or campaign is using the same registered sending number.

  • The number is not still pending assignment or verification.


Check Workflows and Campaigns

If automated messages are failing, make sure the automation is not using the number before provisioning is complete.

Review:

  • Workflow sender settings

  • Campaign sender settings

  • Default sending number

  • Recently changed phone number assignments

  • Scheduled sends immediately following A2P approval

Consider pausing automated sends until the registration has fully propagated.


Frequently Asked Questions

Q: What does Error 30035 mean?
It means the A2P registration is approved or nearly complete, but carrier provisioning for the sending number has not fully finished.

Q: How long should I wait after A2P approval?
Allow up to 24 hours for carrier provisioning to complete.

Q: Does this mean my A2P campaign was rejected?
Not necessarily. Error 30035 often occurs during the propagation period after approval.

Q: Should I keep sending test messages during the waiting period?
No. Repeated testing during provisioning is unlikely to help and may continue to fail.

Q: What if the error remains after 24 hours?
Review the Brand, campaign, and number association status, then contact support if everything appears approved and complete.

Q: Can workflows be affected by this error?
Yes. Automated sends can fail if they begin before the number is fully provisioned.

Need Help?

If Error 30035 continues, first confirm that the registration is fully approved and enough time has passed for carrier provisioning.

Verify that:

  • The Brand status is approved.

  • The A2P campaign status is approved.

  • The correct phone number is linked to the campaign.

  • The number shows the expected registration status.

  • At least 24 hours have passed since approval or number association.

  • No registration steps are still pending or incomplete.

  • Workflows and campaigns are using the registered sending number.

  • Automated sends were not started before provisioning completed.

  • The number has not recently been reassigned to another campaign.

If the error remains after the full propagation period, contact support for review.

Before contacting support, collect the sending number, Brand status, campaign status, campaign ID if available, number-linking status, approval timestamp, failed message timestamps, and screenshots showing Error 30035.