---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/21729#article
headline: "21729: Cannot perform operation on suspended campaign"
url: https://www.twilio.com/docs/api/errors/21729
inLanguage: en
dateModified: 2026-03-25T13:47:45.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 21729: Cannot perform operation on suspended campaign

Log Type: APPLICATION

Log Level: ERROR

## Description

The requested operation is blocked because the campaign is in a suspended state. Suspended campaigns cannot be used to send messages, and self-service deletion or number changes are unavailable until the suspension is lifted.

### Possible causes

* The campaign was suspended after a messaging policy or compliance violation, including issues such as campaign-to-traffic mismatch, spam, phishing, or other related violations.
* The associated Brand is suspended, which can also place the campaign into a suspended state.

### Possible solutions

* Check the campaign status and associated Brand status in Messaging > Regulatory Compliance > Campaigns and Brands to confirm whether the campaign or Brand is suspended.
* Review the suspension reason and resolve the underlying compliance or policy issue before retrying the operation.
* If the campaign is suspended, do not try to delete it or change its numbers through self-service until the suspension is lifted.
* Contact Twilio Support for the suspension details and next steps.

#### Additional resources

* [Troubleshooting and rectifying Campaigns](/docs/messaging/compliance/a2p-10dlc/troubleshooting-a2p-brands/troubleshooting-and-rectifying-a2p-campaigns-1)