---
type: resource-type
title: Master
description: aws resource type AWS::GuardDuty::Master
name: Master
lexicon: aws
resource_type: AWS::GuardDuty::Master
---
`AWS::GuardDuty::Master`, a resource type of the aws lexicon.

## Properties

- `DetectorId` (`string`, required): Unique ID of the detector of the GuardDuty member account.
- `MasterId` (`string`, required): ID of the account used as the master account.
- `InvitationId` (`string`, optional): Value used to validate the master account to the member account.