"Application has changed since the last time you used it." - SEPM Small Business

Hi,

I have had several users who are seeing the "an application has changed since the last time you used it." message fairly often. I am trying to follow this article based on previous forum questions: 

https://support.symantec.com/en_US/article.TECH123331.html

However I do not see the "clients page" and if I click on computers where I have a list of PCs that have the product installed and then click on the policy tab I don't see Network Application Monitoring option or anywhere to add combinations for executables. Any advice would be appriciated.

Version: 12.1.671.4971