Context profiles are a VMware Cloud on AWS add-on feature available only in an SDDC that has activated the NSX Advanced Firewall Add-On.
There are two types of profiles: context profiles and layer 7 access profiles. Profiles enable creating attributes key value pairs such as layer 7 App Id, and Domain Names. After a profile has been defined, it can be used in one or more distributed firewall rules, and gateway firewall rules.
For information about how to install and use the NSX Advanced Firewall add-on, see About NSX Advanced Firewall Features. You can read more about context profiles and how to use them in VMware Cloud on AWS here.