Control Group
Hi,
I'm using Control Group functionality and would like to restrict sending to specific users.
For example:
I set up a query with 4 clients (client 1, client2, client 3, client 4), I put a percentage in the control group of 50%.
In case the functionality would fire randomly for 2 clients.
How can I restrict the tool from forwarding the trigger to client 1 and client 3?
Would it be in the list (within Extra Population)?
Ps: I tried to create a test list in this field, but it did not work.

Thanks,
Jéssica