OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalcustomOptional free-form custom data
OptionalexperimentExperiment name needed for A/B testing.
Free-form data that can be used to enrich the analytics data If customData is specified in
SourceMetadataandDefaultMetadatadata is merged on a field basis withSourceMetadatataking precedence.