How can I block the form after 20 submissions?

How can I block the form after 20 submissions?  are there any setup?

I have 4 different courses in the field "Curso al que se inscribe" , I can only accept 20 submissions, can I block each course after 20 submissions?

Are you planning to receive only 20 submissions? If yes, then you can disable the form after 20 submissions.

In the Form Builder, click "Settings" in the top menu and then go to "Form Settings". Change the "Form Status" to "Disable on submission limit" and specify the number of submissions.

Here's a related guide: How-to-Limit-Submissions-in-a-Form.

If you want to limit each course (each option) for 20 users only, then I recommend you use these widgets:

1. Appointment Slots widget

2. Ticket Purchases widget

3. Gift Registry widget

Here's a guide on How-to-Add-a-Widget-to-Your-Form.

Hope that helps. Thank you.