If you are familiar with using JMeter, for example, if you already know how to create a test plan and record/modify/play scripts in JMeter, you can directly go to the Parameterization and correlation section and proceed to parameterize and correlate the dynamic values (such as session ID, transaction ID, access token, etc.) in the installable cloud app.
If you are not familiar with JMeter, you should go through the following sections to learn the basic usages, including creating a test plan to record the JMeter scripts, configuring the recorded scripts, playing the scripts etc. Or go through https://jmeter.apache.org/usermanual/jmeter_proxy_step_by_step.html to familiarize yourself with JMeter basics.
