STEP 1: Go to and search for the installation id use the Breece license key 

STEP 2: Go to dps012 browse to C:\Users\administrator.DELFI\Desktop\FreshdeskAPI edit FreshdeskAPI.exe.config

Inset <string>Installation ID</string> like shown i the picture

Step 3: save and close the file. last close the "Freshdesk API test" application and open the application again