missingSignature
The signature for the ad is missing, in the testing environment.
Declaration
static var missingSignature: SKAdTestError.Code { get }Discussion
Check that you provide a signature in validate(_:publicKey:) or validateImpression(parameters:publicKey:).
See Also
Getting Signature Errors
signatureInvalidKeysignatureInvalidOrdersignatureMissingAdNetworkIdsignatureMissingAppAdamIdsignatureMissingFidelityTypesignatureMissingNoncesignatureMissingSourceAppAdamIdsignatureMissingSourceDomainsignatureMissingSourceIdentifiersignatureMissingTimestampsignatureUnknownErrorsignatureVerificationFailed