KB40994: "[Importing the file failed: Error #2032. Please check if the URL is correct and check MicroStrategy Web Error Log.]" error message appears when users try to import local files using Data Import feature in MicroStrategy Web 9.x

SYMPTOM:
 
Users receive the following error message when trying to upload a file using Data Import function in Strategy 9.x:
 

Importing the file failed: Error #2032. Please check if the URL is correct and 
check Strategy Web Error Log.

 
Using Fiddler to trace the request of the issue, it can be seen there is a 500 HTTP error in the stack trace.  
 

Server Error in '/Strategy' Application
java.io.IOException: Access is denied

  
CAUSE:
 
One possible cause is that the specific Windows user sending the request does not have correct permission to the temporary directory on the web server in which the upload process is accessing.
 
ACTION:
 
Check the temporary directory being accessed on the web server to make sure the Windows user(s) trying to import data has modify permissions. The exact location of the folder will differ depending on the operating system and IIS version. An example path is below: 
 

C:\Windows\Temp

 
When using Network Service as application pool identity, the temporary directory permissions that must be modified is the following:

C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Temp

 
 
Note: the actual name of the file in the temporary directory will not be the same as the one the user uploaded; all files will have an extension of .TMP as shown below: