We need to move a substantial amount of SharePoint and OneDrive content to a new Microsoft 365 tenant. The challenge is not simply copying documents. We need to preserve folder hierarchies, important metadata, and the correct destination ownership while avoiding unnecessary duplicates.

Some departments have overlapping files because employees have shared and uploaded the same documents in different locations. Moving everything without reviewing duplicate content could increase storage consumption and make the destination environment harder to manage.

While comparing migration approaches, I found the DRS Softech Office 365 Tenant to Tenant Migration Tool. It combines SharePoint site and OneDrive account migration with built-in deduplication, which can identify duplicate files, retain a preferred version, and preview results before deletion.

I also like the idea of using filters such as file extension, file size, created date, modified date, content type, and date range. These options could help us focus on the data that actually needs to be transferred instead of moving everything indiscriminately.

Another consideration is mapping. Our existing SharePoint sites do not correspond perfectly to the new departmental structure, so one-to-many or many-to-one mapping could be useful.

The demo offers a way to preview SharePoint and OneDrive migration with applicable file-size and list limitations before purchasing the full version.

For anyone who has completed this type of migration, how did you validate permissions, document versions, metadata, and folder structures? Did you perform a small pilot first, and what checks helped you catch missing or duplicated files before users started working in the new tenant?

read more- https://www.drssoftech.com/tenant-to-tenant-migration/