exclusive and global scope in populate and lookup cache?

i have two proxies ,first proxy i used populate cache to cache key,and the second i used lookup cache to search a key. i want to know the scope that i will use it and what the difference between exclusive and global scope and when can i use every one? @dchiesa1

The documentation explains the meaning of the scope parameter.

https://cloud.google.com/apigee/docs/api-platform/reference/policies/populate-cache-policy#ScopeElement

If there is something not clear about that, please let me know.