API ReferenceAWSCognitoIdentityProviderICognitoIdentityProviderGetUICustomizationRequestVersion: 2.1On this pageICognitoIdentityProviderGetUICustomizationRequestInterface in AWS.CognitoIdentityProvider Interface for GetUICustomization requests. Ancestors ICognitoIdentityProviderRequest Properties ClientId property ClientId: string Specify the ID of a client app. UserPoolId property UserPoolId: string Specify the ID of the user pool.