[android-components](../../index.md) / [mozilla.components.service.fxa](../index.md) / [FxaAuthData](index.md) / [declinedEngines](./declined-engines.md)

# declinedEngines

`val declinedEngines: `[`Set`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-set/index.html)`<`[`SyncEngine`](../-sync-engine/index.md)`>?` [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/service/firefox-accounts/src/main/java/mozilla/components/service/fxa/Types.kt#L50)

An optional list of [SyncEngine](../-sync-engine/index.md)s that user declined to sync.

### Property

`declinedEngines` - An optional list of [SyncEngine](../-sync-engine/index.md)s that user declined to sync.