Collaborative Inboxes in Google Workspace offer a way of sharing a mailbox with multiple users. A Google Group is created with a specific email address, and the people that need to access the shared mailbox are added as group members...
There are a number of options that you can set within a Google Group, including advanced options which you can display if required...
Add members to a collaborative inbox
Once you have created a Google Group, you can edit your membership within the group, change group settings and invite other members to the group. You can also change the membership of your members by making them managers so that they can approve pending messages and change group settings...
If you are an owner or manager in a collaborative inbox, you can delete messages in the group.
You can delete a collaborative inbox if it is no longer required.
Send collaborative inbox messages from your own mailbox
You can set your Gmail account to allow you to send a message from a collaborative inbox ...