forceAliasCreation

This parameter is used only if the phone_number_verified or email_verified attribute is set to True . Otherwise, it is ignored. If this parameter is set to True and the phone number or email address specified in the UserAttributes parameter already exists as an alias with a different user, this request migrates the alias from the previous user to the newly-created user. The previous user will no longer be able to log in using that alias. If this parameter is set to False , the API throws an AliasExistsException error if the alias already exists. The default value is False .