Symptoms

Error thrown when opening any rule of a form (Change Request):
Maximum request length exceeded.
 

Diagnoses

That error indicates that the web request is hitting the ASP limit:
http://forums.iis.net/t/1169846.aspx
 

Resolution

Issue:

Error when opening SmartForms rules: Maximum request length exceeded.

Resolution:
To fix, please try the following:
1. Go to C:Program Files (x86)K2 blackpearlK2 SmartForms Designerweb.config
2. Make a backup of the file
3. Locate the following line and set the maxRequesstLength to:



Note: This is the max allowable length that IIS can handle.

3. Save the file and do an IISRESET
4. Clear the browser's cache, restart the browser and try editing the form again.