---
page_type: error
code: 21501
message: "21501: Resource not available"
level: ERROR
---

## Error - 21501

### Resource not available

The resource you requested is not (yet) available.

#### Possible Causes

- Most likely you're fetching a Recording resource that is temporarily performing some post-processing, and will be available momentarily.

#### Possible Solutions

- Retry the HTTP request again. The Retry-After header will tell you when to retry. Within a couple seconds should be ample.