Is there a way to limit the number of users who submi the form to say 10 and after that provide a message saying "You are added to waitlist" please?
Thanks
Priya
It is not supported yet. Can you give some use case for such feature?
Using forms to make reservations for events, hotels, etc.
I mean the conference classes are a great use case. How would you use Forms for them so that it lets 25 people sign up for a class, and puts the rest on a wait list? 
Yes exactly. We would like to limit the number of registrants for a training to say 10 and put the rest in a wait list.
Thanks
Priya
We discussed this feature internally but we felt it is a little bit tricky: if the limitation is turned on and the current instances have reached the limitation, can the limitation to be turned off? And can it be turned on again? If it can be turned on again, how to count the instances? The limitation only count the instances initialized after it turns on or count the total instances of the process?
I think there should be two counters that represent two thresholds:
Threshold 1 Example: Class is full, but there is room on the waitlist. Form can still be submitted. Form will detect this and automatically change the submit button label to "Put me on the waitlist." User will be displayed an alternative thank you page upon submission.
Threshold 2 Example: Waitlist is full, no more submissions allowed. When user goes the the form's page, instead of the form itself they see a customizable static page ("Sorry, registration for this class is closed.").
You should be able to have one or both of these thresholds turned on. It should be possible to turn them off and turn them back on. If turned back on, the instance count should start from 0.
This would be a great feature.