Moving multiple TBs of data from one OneDrive user to another within the same tenant

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Posted on by Marketeer

Looking for guidance on wether this is possible and any example flows.

I have a OneDrive for Business user that is close to reaching the 25TB storage limit.
I would like to move about 5TB of files to another OneDrive for Business user within my same tenant.
A manual move is impractical due to the size of some of the folders (some folders are over 100GB).
Using a Cloud Transfer tool such as MultCloud could work, but the transfers fail more often than not.

Question: Is it possible to create a flow that tranfers the files from one ODB to the other, verifies that everything was transfered correctly, and sends a notification? Ideally these transfers should happen entirely in the cloud.

Thanks in advance!

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Building flows

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David_MA 12,978 Super User 2025 Season 2 on at

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I doubt you will be able to move that much data with a Power Automate flow. It would most likely fail and timeout. You should look into Cross-tenant OneDrive migration overview - Microsoft 365 Enterprise | Microsoft Learn. It is an add-on that has additional costs.

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Marketeer 4 on at

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OG here. Thanks for chiming in, I figured this would be the case. I am trying a cloud sync tool (cloudHQ) before going into more complex routes as this is a one-time data move.

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