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Why can no one upload a file with this file name to SharePoint?

Posted on 2015-02-17
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Last Modified: 2015-02-19
Hello,

A user reported a strange error to IT Support the other day and I would like to discuss how it could happen. Since then the situation has resolved itself but I'm curious :-)

Scenario
We're using a SharePoint 2013 Enterprise server
The user has Contribute access to both the site and the document library
The error only affects one file, or rather this exact file name
The user is able to upload other files to this document library

Problem
We were unable to upload a file with a specific name.
Observations
The file (at least as far as we could tell) didn't already exist
It doesn't matter if the user tries to upload using drag and drop or by clicking upload, it will still fail
It doesn't matter who tries to upload the file, it will always fail
If we change the file name to something else, it will upload correctly
It doesn't matter what the file contains (data, text, nothing, empty), if it has this specific name it will fail to upload
This file name was the only one we had issues with
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Comment
Question by:Auhn
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4 Comments
 
LVL 31

Expert Comment

by:Jamie McAllister MVP
Comment Utility
Not all characters or combinations of characters are supported. Character encoding might also be an issue in some cases.

What was the offending filename?

Here's some guidance;

http://www.collabshow.com/2012/06/04/sharepoint-2010-file-name-length-size-and-invalid-character-restrictions-and-recommendations/
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Author Comment

by:Auhn
Comment Utility
Thanks for the reply. The file name is compliant. I can't enter the file name publicly due to company policy but it was in the format AB12345.xls. The folder contains a series of .xls documents according to orderID to the company's customers.
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Accepted Solution

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Jamie McAllister MVP earned 500 total points
Comment Utility
I've experienced an issue with a user recently whereby a document they uploaded did not overwrite an existing document. The name was identical, and the only way to solve it was to cut and paste the old name to rename the new file. I put it down to some sort of encoding issue on the characters in the file name.

I suspect your issue was similar, but the renaming/experimenting to get the file uploaded ultimately got rid if the troublesome character(s).
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Author Comment

by:Auhn
Comment Utility
It sounds like it's plausible. I went back to check the file that couldn't be uploaded and noticed when the problem was resolved that it had an upload date and time before the problem began.

I suspect a couple of users tried to upload the same file to the same location at the same time which caused an error. It's a long shot at best but that's where my mind is at right now.
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