At what point at editing does jotform create a different link for the form?

Hello, 

my question is, at what point at editing does jotform create a different link for the form? 

Thank you for contacting us. The form link will be the same, and it will not change based on form edits. If you want to set a custom URL, you can do it as shown on this guide: https://www.jotform.com/help/261-How-to-Create-a-Custom-URL-of-a-Form

Let us know if you need more help.