# DeclarationBase Keys common to all declarations used with the Remote Management protocol. ``` object DeclarationBase ``` ## Discussion ### Reason Codes - `Error.ActivationFailed`: A configuration or asset cannot be activated due to an activation that failed. - `Identifier`: (string) The `Identifier` of the declaration. - `ServerToken`: (string) The `ServerToken` of the declaration. - `Error.AssetCannotBeDeserialized`: The asset data does not conform to the expected data type. - `Error`: (string) Description of the underlying NSError. - `Error.AssetCannotBeDownloaded`: The asset data cannot be downloaded. - `Error`: (string) Description of the underlying NSError. - `Error.AssetCannotBeVerified`: The downloaded asset data cannot be verified. - `Error`: (string) Description of the underlying NSError. - `Error.ConfigurationCannotBeApplied`: The configuration cannot be applied to the device. - `Error`: (string) Description of the underlying NSError. - `Error.ConfigurationCannotBeDeserialized`: The configuration is not valid. - `Error`: (string) Description of the underlying NSError. - `Error.ConfigurationFailed`: An asset cannot be activated due to a configuration that failed. - `Identifier`: (string) The `Identifier` of the declaration. - `ServerToken`: (string) The `ServerToken` of the declaration. - `Error.ConfigurationIsInvalid`: The configuration is not valid for applying to the device. - `Error`: (string) Description of the underlying NSError. - `Error.ConfigurationNotSupported`: The configuration is not supported for this platform, scope, or enrollment type. - `Identifier`: (string) The `Identifier` of the configuration. - `ServerToken`: (string) The `ServerToken` of the configuration. - `Error.InvalidPayload`: A declaration is not fully loaded. - `Identifier`: (string) The `Identifier` of the declaration. - `ServerToken`: (string) The `ServerToken` of the declaration. - `Error.MissingAssets`: A configuration being activated references assets that are not present. - `Identifier`: (string) The `Identifier` of the configuration. - `ServerToken`: (string) The `ServerToken` of the configuration. - `AssetIdentifiers`: (array) Array of strings containing each missing asset `Identifier` value. - `Error.MissingConfigurations`: An activation being activated references configurations that are not present. - `Identifier`: (string) The `Identifier` of the activation. - `ServerToken`: (string) The `ServerToken` of the activation. - `ConfigurationIdentifiers`: (array) Array of strings containing each missing configuration `Identifier` value. - `Error.MissingState`: A declaration is missing internal state information. - `Identifier`: (string) The `Identifier` of the declaration. - `ServerToken`: (string) The `ServerToken` of the declaration. - `Error.PredicateFailed`: A predicate evaluation failed. - `Identifier`: (string) The `Identifier` of the activation whose predicate failed. - `ServerToken`: (string) The `ServerToken` of the activation whose predicate failed. - `Predicate`: (string) The predicate description of the predicate that failed. - `Domain`: (string) Underlying NSError’s domain. - `Code`: (string) Underlying NSError’s code. - `Error.UnableToEvaluatePredicate`: A predicate cannot be evaluated. - `Identifier`: (string) The `Identifier` of the activation whose predicate failed to evaluate. - `ServerToken`: (string) The `ServerToken` of the activation whose predicate failed to evaluate. - `Predicate`: (string) The predicate description of the predicate that failed to evaluate. - `Error.UnableToParsePredicate`: A predicate expression cannot be parsed. - `Identifier`: (string) The `Identifier` of the activation whose predicate failed to parse. - `ServerToken`: (string) The `ServerToken` of the activation whose predicate failed to parse. - `Predicate`: (string) The predicate description of the predicate that failed to parse. - `Error.UnableToParsePredicateWithCustomOperator`: A predicate expression with a custom operator cannot be parsed. - `Identifier`: (string) The `Identifier` of the activation whose predicate failed to parse. - `ServerToken`: (string) The `ServerToken` of the activation whose predicate failed to parse. - `Predicate`: (string) The predicate description of the predicate that failed to parse. - `Error.Unknown`: An unrecognized NSError was generated. - `Domain`: (string) NSError’s domain. - `Code`: (string) NSError’s code. - `Error.UnknownDeclarationType`: The declaration type is not known. - `UnknownDeclarationType`: (string) The `Type` of the declaration. - `Error.UnknownPayloadKeys`: A declaration contains unknown payloads keys. - `UnknownPayloadKeys`: (array) Array of strings containing each unknown key-path. - `Info.NotReferencedByActivation`: A configuration is not referenced in any activation. - `Identifier`: (string) The `Identifier` of the configuration. - `ServerToken`: (string) The `ServerToken` of the configuration. - `Info.NotReferencedByConfiguration`: An asset is not referenced in any configuration. - `Identifier`: (string) The `Identifier` of the asset. - `ServerToken`: (string) The `ServerToken` of the asset. - `Info.Predicate`: A predicate evaluated to false. - `Identifier`: (string) The `Identifier` of the activation whose predicate is false. - `ServerToken`: (string) The `ServerToken` of the activation whose predicate is false. - `Predicate`: (string) The predicate description of the predicate that is false. - `Info.UnsupportedSettings`: Unsupported settings in a configuration. - `Settings`: (array) Array of strings containing each unsupported setting key-path. ## Topics ### Dictionaries [`object DeclarationBase.Payload`](/documentation/DeviceManagement/DeclarationBase/Payload-data.dictionary) --- Copyright © 2026 Apple Inc. 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