
If I set a global variable, either from within the PVA or the a external source as per below, does it hold its value per session/user or does it reflect all users / all current sessions?
https://powervirtualagents.microsoft.com/en-us/blog/reusing-variables-across-topics-and-setting-variable-values-from-external-sources/
Global variables are scoped to that particular bot, so they are per session. They are global because they are visible in all the Topics when the bot instance is running. Regular variables are only visible in the Topic they are declared in, although they can be designated as input or output variables and passed between topics.