Sign in to your Google Admin console or Google Groups account
Create a new Google Group
Choose the group type as Collaborative Inbox or email list
Set the group name and email address
Add the team members who need access
Configure posting permissions so members can send and receive messages
Enable access for external senders if needed
Turn on Collaborative Inbox features if available
Assign roles such as owners, managers, and members
Set moderation and conversation settings
Save the group settings
Share the group email address with your team
Use the group email address as the shared inbox for incoming messages
Have team members reply from the group to keep all communication centralized
Monitor and manage messages from the Google Group interface