title: Activation:Simple
description: The declaration to activate a set of configurations.
payload:
  declarationtype: com.apple.activation.simple
  supportedOS:
    iOS:
      introduced: '15.0'
    macOS:
      introduced: '13.0'
    tvOS:
      introduced: '16.0'
    visionOS:
      introduced: '1.1'
    watchOS:
      introduced: '10.0'
payloadkeys:
- key: StandardConfigurations
  title: Standard configurations
  type: <array>
  presence: required
  content: An array of strings that specify the identifiers of configurations to install.
    A failure to install one of the configurations doesn't prevent other configurations
    from installing.
  subkeys:
  - key: StandardConfigurationsItems
    title: Standard configurations items
    type: <string>
- key: Predicate
  title: Predicate
  type: <string>
  presence: optional
  content: A predicate format string as [Apple's Predicate Programming](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Predicates/AdditionalChapters/Introduction.html)
    describes. The activation only installs when the predicate evaluates to `true`
    or isn't present.
examples:
- title: Activation examples
  files:
  - tab: One configuration
    description: This activation applies one configuration.
    file: examples/declarative/declarations/activations/simple/example1.json
  - tab: Predicate
    description: This activation applies two configurations and uses a predicate to
      limit those to only apply on an Apple TV device.
    file: examples/declarative/declarations/activations/simple/example2.json