Automatic sync using deep link

Hello freinds,
I have implemented automatic sync for deep links that I send to users through WhatsApp by appending &at=(NOW()+1) at the end of the deep link.

If the app is closed initially when the deep link is clicked, then the app opens by syncing (could be default sync at start), and it works fine. But if the app is already open, the deep link doesn’t force sync the data before displaying. Has someone else faced a similar issue? What is the solution? Kindly help. Thank you.