If an Order is in AWAITINGPAYMENT status, once payment is received the order should change to NEW status, if it doesn't, please follow the steps below.
To resolve this issue please do the following:
Click Orders then Overview.
Find and tick the order.
From the Bulk Actions drop down select Mark as Payment Received.
Then, click Go.
You should get a Success message, and it will change to NEW.
Note: If it doesn't change to NEW, please raise a new case online and reference the title of this article.