Edit submission link is not showing

I did that but only receive a test mail with the code edit link but no link to edit

I believe you are referring to the "edit submissions" link in the email alerts. You need to complete the actual form in order to test it properly.

I opened this form and did a test submission. Here's a screenshot of the email notification:

As you can see, the edit link is showing properly.

Hope this helps. Thank you.

No problem. If you need any help, let us know. Thank you.