Controlling settings, permissions, and membership within Teams and channels
The practical way to do this in Microsoft Teams is to move or copy the files, not the channel itself.
If the files are in a Teams channel, they are stored in the channel’s SharePoint-backed file library. That means the easiest supported options are:
- In Teams, open OneDrive > My files.
- Locate the source file or files.
- To find files from a specific channel, find the channel under Quick access or More places....
- Or open the channel and go to the Shared tab.
- Hover over the file and select More options > Move to or Copy to.
- Select the destination folder for the other channel.
- Select Move here.
For multiple files:
- Select the check mark next to each file.
- Select More options next to one of them.
- Choose Move to or Copy to.
If needed, the channel files can also be accessed from the channel itself:
- Select Teams.
- Open the source channel.
- Select Shared at the top.
If the destination is another user’s channel, the required condition is access to that destination channel or its underlying SharePoint location. Without access, the files cannot be copied there from Teams.
If a direct move/copy in Teams is not convenient, another supported approach is:
- Open the source channel.
- Select Shared > More commands > Open in SharePoint.
- Use SharePoint to work with the channel folder.
For larger migrations, Microsoft documentation also notes broader migration options through Microsoft 365 file migration tools such as Migration Manager or the SharePoint Migration Tool.
Also, if the goal is only to let the other channel use the same file, copying is not always necessary. A supported alternative is to share a link to the file instead of duplicating it.