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  •  If you leave the PDF Name property blank, Live Forms uses the flow/form name as the pdf file name. The PDF will not post to SharePoint generating an HTTP 403 status error if the Form Name contains special characters. To avoid any issues, name your form/flows using characters that are suitable for filenames and explicitly set the pdf name in the form/flow using the same standard. Following the POSIX filename standard (A–Z a–z 0–9 . _ - ) will ensure it works.
  • Special characters in filenames will cause the submission to be flagged with an error in the
    submission table. We recommend POSIX naming standards as there are some special characters that are not supported by the connector. 


< (less than)
> (greater than)
: (colon - sometimes works, but is actually NTFS Alternate Data Streams)
" (double quote)
/ (forward slash)
| (vertical bar or pipe)
? (question mark)
* (asterisk)


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This can happen if you do not name the PDF file, and it defaults to your form/workflow name, if that name has special characters.

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