How to collaborate Jmeter Load Test Scenario

Question

Scenario - System should able to handle 1000 simultaneous users logged-in, and 500 users also active at the same time in the system.

Answer 1

Normally you should use different Thread Groups for representing different groups of business users so just add 2 Thread Groups, one with 1000 "logged-in" users and another one with 500 users which are "active" (whatever it means).

Then add HTTP Request samplers to implement your users activities (you can even record and replay the test scenarios using HTTP(S) Test Script Recorder)

If you already have implemented these user flows and just want to divide 1500 users into 1000 and 500 doing different actions within the bounds of the singe Thread Group- put them under 2 Throughput Controllers

More information: Running JMeter Samplers with Defined Percentage Probability