Issue: Server Error '404-File or Directory Not Found' Displayed in the Auto Ack Template preview of Fax Template Module
Logs to check: check for below errors in OCM Log4Net.log
1.verify whether the below key is present in OCM web.config
<add key="MaxFileSizeForUpload" value="10" />
If it is not present add the key and edit the record and upload the file again
2.if the key is present and still, the error is displayed Ensure that the file exists in the "FaxFileUploadURL" path configured.