30899: Campaign registration failed due to carrier rejection(s)

This error means one or more carriers rejected your campaign registration. If the campaign campaign_status is FAILED, review the campaign errors array for any related rejection details, affected fields, and linked error pages.

• Carrier review found inaccurate or inconsistent registration data, such as mismatches between your brand details, website, sample messages, and declared use case. (help.twilio.com)
• Your message flow or call to action did not clearly explain how end users opt in, or it did not include required disclosures such as opt-out instructions, customer care details, message frequency for recurring programs, or privacy policy information. (help.twilio.com)
• The campaign appeared to involve prohibited, disallowed, or high-risk traffic, which can cause campaign rejection during ecosystem review. (help.twilio.com)

• Fetch the Usa2p resource for the Messaging Service and review the campaign_status and errors fields to identify any related rejection codes, descriptions, and affected fields.
• Update the campaign so the registered brand, website, sample messages, use case, and message flow are accurate, complete, and consistent. Make sure your opt-in flow and required disclosures are clearly documented before you resubmit. (help.twilio.com)
• Contact Twilio Support with your campaign SID, Messaging Service SID, and account details for resolution. If the rejection is not directly resubmittable, support can help you determine whether an appeal or a material campaign change is required.

• Troubleshooting and rectifying A2P Campaigns
• Usa2p resource API reference
• A2P 10DLC Campaign Approval Best Practices