public String getInvitationId() {
        return this.invitationId;
    }
<p>
The value that is used to validate the administrator account to the member account.
</p>

@return The value that is used to validate the administrator account to the member account.
aws-java-sdk-guardduty/src/main/java/com/amazonaws/services/guardduty/model/AcceptAdministratorInvitationRequest.java