I can no longer find the option to change the thank you settings

Dear all,

I can't find the option anymore. I was able to update the welcome page up to last Friday but now the option seems to have disappeared. Has it been moved?

Thank you a lot for the support.

The guide that you read is for the classic layout. Upon checking, you're using the card layout for the form. The Thank You settings for card form is at the bottom part of the form builder. See screenshot:

Guide here https://www.jotform.com/help/499-How-to-Edit-Thank-You-Page-Settings. 

Dear Welvin, 

Thank you very much for getting back to me. Found it! In that section I can't upload pictures or hypertext links, am I right?

Thanks again!

You can only change the Check icon showing a submission is received. You cannot add a new image in the section. You can hyperlink text by highlighting the text and clicking the link icon, see example:

I would suggest redirecting users to your custom thank you page if you'd like a customized page for the thank you message. 

Dear Welvin,

Thank you so much!! Your help has been precious!

Take care.