Issue Description

An error is logged when you execute the REST Service via a SmartObject and a timeout occurs after 100 seconds.

Error Message

The following error is logged in the K2 HostServer log file: “Input string was not in a correct format”.


The fix is available in the following K2 versions:

K2 4.7 March 2018 Cumulative Update K2 Five (5.0) September 2018 Cumulative Update K2 Five (5.1) November 2018 Cumulative Update K2 Five (5.2) May 2019 Cumulative Update K2 Five (5.3)
X X X X Fix Pack 19
  1. Ensure you have the correct K2 version and/or Cumulative Update installed. See KB001893 to see what Fix Pack level you have installed.
  2. Download the latest Fix Pack using the links in the table above for the version you require.
  3. Install the Fix Pack to apply the fix.


You will now be able to set a timeout value for the REST Service Instance. When you configure or add the Service Instance in K2 Management, a ServiceKey setting named TimeOut (Seconds) is now available. This is a required ServiceKey.