Number of concurrent users

Is there a way, on z/OS with CICS to tell the high water mark for the number of concurrent Natural users?

SYSTP should give you what you need:

E (Environment-Dependent Functions) →
C (NCI Global System Information) →
Natural User Sessions (max)

If you’re running with the Roll Server:
use PF8 until you see: Maximum number of users allocated

Great. This helps a lot. Thanks. 8)