Error: invalid-filename-characters

Error Type


Relevant Store



Invalid Filename Character errors are due to having an invalid name for a file.

During the scan stage of migration (the first step), Movebot will perform checks to ensure your data will transfer properly. One of these checks is the names of files - there is a chance some of your files have invalid names

Common Root Causes

  • The file has an invalid name for the store that it is being uploaded into

Quick Fixes

  • Add a filename transformation rule to modify the names of the files during the transfer

    • This is found under Project Settings -> Content Options

    • This cannot be done for email/contacts/calendars, only for files

  • Change the name of the affected files manually in the source.

After attempting a fix, rerun failures or run a new delta migration to see if the error is resolved.

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