I’ve lost my email with my application ID after authentication was done.
How do I recover my Appplicant ID?
Retrieve an Application ID
If you do not have your Application ID and would like to retrieve it, do the following:
From the Retrieve a DS-160 Application page, click the Forgot your Application ID? link.
The Retrieve Application ID pop-up appears. Enter the answers to your security questions.
Click the Retrieve Application button. You will be taken to the last page that you completed.