---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/91304#article
headline: "91304: Internal error, delivery retried"
url: https://www.twilio.com/docs/api/errors/91304
inLanguage: en
dateModified: 2026-11-04T19:15:20.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 91304: Internal error, delivery retried

Log Type: TWILIO

Log Level: WARNING

## Description

Twilio records this error when Data Destinations hits a transient internal condition while preparing an event for delivery.

The event is **not** dropped. Twilio retries delivery automatically according to the retry policy on your destination, and in most cases the event is delivered on a subsequent attempt. No action is required unless the condition persists.

### Possible causes

* Twilio could not read the destination's configuration at delivery time.
* Converting the event for the destination exceeded its internal time limit.

### Possible solutions

* No action is required if the event is delivered on a subsequent attempt.
* If events remain undelivered after the retry window, contact [Twilio Support](https://help.twilio.com) and include the destination SID, subscription SID, event type, and the time window of the affected events.

### Related errors

* [91303: Event dropped due to an internal error](/docs/api/errors/91303)

#### Additional resources

* [Data Destinations overview](/docs/data-destinations)
* [Create a destination](/docs/data-destinations/api-quickstart#create-a-destination)
* [Create a subscription](/docs/data-destinations/api-quickstart#create-a-subscription)