API ReferenceAWSCognitoIdentityProviderICognitoIdentityProviderCustomDomainConfigTypeVersion: 2.1On this pageICognitoIdentityProviderCustomDomainConfigTypeInterface in AWS.CognitoIdentityProvider Interface for CustomDomainConfigType. Properties CertificateArn property CertificateArn: TARN The Amazon Resource Name (ARN) of an AWS Certificate Manager SSL certificate.