First, we logged in to the main account, which is the account that will aggregate all GuardDuty findings. We then invited a member account. We had already noted down the account ID, and so it should have known the root email address of this account.

We then logged in to our member account and accepted the invitation. After that, we generated sample findings from the member account. Finally, we logged back into our main account and verified that the findings from the member account were now present in the main account.