In my Magento website, Customer has placed an Order, PayPal received the amount with the Magento Order ID. But still, Customer didn't get to reach the Success page. Also that Order not listing at the backend as well.
I have searched about this issue, and some of them faced the same issue, and suggested me to disable Asynchronous indexing from Stores > Configuration > Advanced > Developer > Grid Settings > Asynchronous indexing.
But I can't get the reason, why the issue happening, at what case, can anyone guide me on this.?
It would be much appreciated.
Thanks in advance.