My situation is this: I have a MS SharePoint 2013 on-premises server; a specific site there, has a Library with 97.000 items in it (different folders&files); it is used by MS Dynamics.
I have to migrate everything to Sharepoint Online(365). Including this list, and keeping it's structure.
The problem is related to that 97.000 Items list. No solution worked; Metalogix, Sharegate ... nothing.
Anybody have any suggestion? Thanks.
1. Well at first there was the View problem. Not even Metalogix could see the list, since AllDocuments had 97.000 Items. The I created 20 view, each with a filter, so they display only 5.000 items each. Then from Metalogix I could view this Library using this view. So I try'd migrating in batches. Basically migrate by view. This did not work.
"Open in Explorer View" also does not work, shows "folder is empty".
2. I have contacted the people from SLIM Applications, regarding their Migration Manager tool. Unfortunately it did not work for me, but they try'd to be as helpful as possible; the item count limitation could not be surpassed.
3. I have opened a ticket to MS Support, waiting for an update.
As an FYI: this situation was created by another on their tools, MS Dynmics, which stores client information in this SP Library.