Return
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Title
Migration Job freezes/pauses with the message "The migration is paused because the target server is under load" -
Description
Migration jobs may pause with the following message when migrating to SharePoint Online:
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Cause
The older builds of Content Matrix were designed to check the Health Score of SharePoint online and pause migration jobs when Health score reaches 9. -
Resolution
Latest versions of Content Matrix no longer use Server Health checks. Please upgrade to the latest version of Content Matrix available on the downloads page to resolve this issue. The latest build at the timing of writing this article was 9.0.
https://support.quest.com/metalogix-content-matrix/download-new-releases
Also, check the advisories in your target Microsoft 365 Admin Center, to check for open/active incidents.