Hi @Arnaud ,
Thank you for posting in this community.
One clarification is that SPO migration to SPO is not supported in either version of SPMT.
SPMT supports migration to SharePoint, OneDrive, and Teams from:
- SharePoint Server 2010, 2013, 2016, and 2019
- SharePoint Foundation 2010 and 2013
If you want to move content (files, folders, libraries, etc.) from one SPO site to another within the same tenant using the native SharePoint functionality. Here’s how:
- Navigate to the source site.
- Check the box next to the subsite or content you want to move.
- select the ellipsis icon (More) and then select Move to or Copy to.
- Choose the destination site for the subsite or content .
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