On-premise: Import error during file upload

Problem

When importing a file bigger than 30MB into a BOC product, the following error message may appear:

"No file was sent to the server. Aborting after 200 tries."
 

This error often occurs when Microsoft IIS (Internet Information Services) is used as the web server and the file being uploaded exceeds the maximum file size allowed by your server configuration.

By default, the maximum permitted upload size in Microsoft IIS (Internet Information Services) is 28.6 MB (30,000,000 bytes).

Request limits Microsoft IIS (Internet Information Services)

In many cases, IIS blocks the file upload, causing the import process to fail after multiple attempts.

Note: Microsoft IIS (Internet Information Services) is not a BOC Group product, but third-party software. The BOC Group assumes no responsibility for the installation, configuration, or maintenance of third-party software. Please contact an IT specialist at your company to verify the configuration.

Solution

Adjust the upload limit in IIS according to the required file size.

Steps to Modify the Maximum File Size Limit

Step	Description	Picture
1	Navigate to  Internet Information Services (IIS) Manager → Sites (1) → Default Web Site (2) → Request Filtering (3) -> Open Feature (4)
2	Click on: "Edit Feature Settings"
3	Enter the desired value in the field "Maximum allowed content length (Bytes)".

The “Maximum allowed content length (Bytes)” field determines the maximum file size allowed for uploads.

Example values you can use:

After making the changes, please restart your Microsoft IIS (Internet Information Services) Server.