Sometimes Miro users can create multiple teams by mistake or on purpose and later need to merge them into one team. Let's say you have Team A and Team B and need to merge them. To do that, please follow these three steps.
1. Move Team members and their assets
Invite members of Team A to Team B.
Then select them all, and in the Bulk actions choose Add or move to a team. In a popup window choose Team B.
The option to add selected users to a certain team in Bulk actions
Now that you have done this, all the collaborators from Team A have access to both teams.
2. Move Team data
Ask Team A members to move the boards they created to Team B (and share them with new members if needed, or share them with the whole team in the board's settings). Please note that only the Board owner can move their boards. Ask them to make sure they moved everything to prevent important data loss. All the data are in Team B's working space now.
3. Delete Team A
Since all team members and boards are moved, Team Admins can delete Team A. Select Team A and go to the Team profile to delete it.
Now all your collaborators and work are in one team.