---
title: errSecTimestampUnacceptedExtension
framework: security
role: symbol
role_heading: Global Variable
path: security/errsectimestampunacceptedextension
---

# errSecTimestampUnacceptedExtension

The requested extension is not supported by the timestamp authority.

## Declaration

```swift
var errSecTimestampUnacceptedExtension: OSStatus { get }
```