---
title: kUnicodeUseFallbacksBit
framework: Core Services
role: symbol
role_heading: Enumeration Case
platforms: [Mac Catalyst 17.0+, macOS 10.0+]
path: coreservices/1433583-conversion_flags/kunicodeusefallbacksbit
---

# kUnicodeUseFallbacksBit

Enables use of fallback mappings.

## Declaration

```occ
kUnicodeUseFallbacksBit = 0
```