Hi Sunkara,
You could use ...link/mydeeplink/{myid}
And then have a parameter $myid in your deeplink microflow.
In the save microflow of the new record you can generate a unique-id use an autonumber or most advised: Use community commons' randomHash.
https://docs.mendix.com/appstore/modules/deep-link/
https://docs.mendix.com/appstore/modules/community-commons-function-library/
Kind regards
Jacob