---
page_type: error
code: 13310
message: "13310: Gather: Invalid finishOnKey value"
level: WARNING
---

## Warning - 13310

### Gather: Invalid finishOnKey value

The value of the finishOnKey attribute must be one of the following characters "0123456789#\*". See the [Gather Verb](/docs/api/twiml/gather#finishOnKey) API Reference for more information.