Multiple studies with the same completion URL

Hi guys
My scenario is to create many studies as copies of the first and to run them all together. But when I copy a study the completion URL remains the same. I don’t understand what will happen if I run many different studies with the same completion URL simultaneously. I guess it can’t work. What do you do in such cases? Create different completion codes manually?

Although when I thought about it more I realize that the participant enters this URL being logged in his account so you can see who uses this URL and you can close specific study based on that?