Yes, I ran into this problem as well. Many files in our environment have an underscore character ("_") in the filename.
Interestingly, the Microsoft Support article that talks about invalid characters does not even mention or list the underscore character as being among the invalid / disallowed ones. So the question is, where is this unnamed / unlisted restriction for barring the use of the underscore character coming from?
John Nash
Yes, I ran into this problem as well. Many files in our environment have an underscore character ("_") in the filename.
Interestingly, the Microsoft Support article that talks about invalid characters does not even mention or list the underscore character as being among the invalid / disallowed ones. So the question is, where is this unnamed / unlisted restriction for barring the use of the underscore character coming from?
https://support.office.com/en-us/article/Invalid-characters-in-file-or-folder-names-or-invalid-file-types-in-OneDrive-for-Business-64883a5d-228e-48f5-b3d2-eb39e07630fa
Microsoft: Please remove this restriction ASAP, thanks!