How can I set up the Thank You page?

Hello. Is this option available only for paying customers? Because I can't find it anywhere and I would need exactly this redirecting to the generated URL.

No, all JotForms features are available for Free Plans too. 

We will gladly assist you if you share the URL of a form you are asking about. 

The fact is that setting up the Thank You page somewhat differs on Cards layout. 

Hope this helps!

We kindly encourage you to always start a new thread if you have another question.

 I have Cards layout indeed. I can't share the URL of the form unfortunately, but if I paste like this the {generatedURL} field mentioned in the original post in the Thank You page subheader will it work?

Yes, pre populating fields will work with Cards Layout. 

Here is How-to-Find-Field-IDs-and-Names for populating.

Let us know if you need more help.

It worked, thank you.

I have posted one other question to which I couldn't find the answer to, but it says "(Private)" near the question. Do the moderators see the question regardless?

Of course, "Private" just means that other users do not have the access to your thread.