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Cannot edit files in Office for the Web for a few days

Mickael Kane 1 Reputation point
2023-09-28T13:57:58.0266667+00:00

Hi, we have M365 E5 for all our users, but since the end of last week, users are starting to not be able to edit documents in Office for the Web (as soon as they open a document in Teams or SPO).

It works fine when they open the document with the M365 Apps (fat client).

Office for the Web is not enabled in the licenses assigned to the end users, as soon as we enable it, it is working again, but we successfully managed to edit documents in Office for the Web without the Office for the Web license enabled for years.

If I try to create a new user without this license feature in another tenant, the user is also able to edit documents in Office for the Web.

Any ideas for this strange behavior ?

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Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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