Must I create variable when I create scenario?

Hi all,

I want to test whether the application is ok if there are 20 people login simultaneously.
I record a login script then create a scenatio with 20 VUser. Must I create a username variable to save 20 user name for 20 VUser?

Thanks for answering me.

If you are using LoadRunner for the same purpose, you need to replace the username with a dynamic variable called parameter and then set the settings to update value on each iteration.

Thanks a lot for answering me, Ashish.