---
page_type: error
code: 52149
message: "52149: Invalid APNs provider token used"
level: ERROR
product: Notifications
---

## Error - 52149

### Invalid APNs provider token used

#### Possible Causes

- The APNs provider token is malformed or otherwise incorrect

#### Possible Solutions

- Verify that your Webhook Credential is configured correctly
- Verify that your token endpoint is configured correctly
- If the problem persists, please contact [customer support](https://www.twilio.com/help/contact).