Hello Sukhpreet, When you created the connection in the Administrator service,Did  you test the connectivity if its successful. if not please test the connection if its valid to make sure you have valid connection used in the mapping task. Thanks, Ashwini

Hi Sukhpreet

Are you using Anaplan V2 connection type? If the test connection works fine and if you are seeing issues when selecting this Anaplan connection in DSS source tab, please share the latest entries that you see in the tomcat log for analysis.

agent installation directory\apps\Data_Integration_Server\logs\tomcat