Hi tpartner,

thanks a lot for the fast answer. So basically I could test that with a limit of this quota that equals 1. So the first complete should work, 2nd not. In contrast, if I first begin with a screenout or just leave the survey, it should not count.
And due to the fact that you mentionend the version: we have currently version 2.57+161202. Do you know where I can find the information whether this feature is applicable for my version, too?

Thanks again!

In contrast, if I first begin with a screenout or just leave the survey, it should not count.

I didn't test with screen-outs. You'll need to do that.

Do you know where I can find the information whether this feature is applicable for my version, too?

Test it. You can see the current quota counts in the "Completed" column of the "Survey quotas " screen.