Redownload (WordPress plugin)

The re-download plugin allows a user to resend an order to Sync server. 

After install you can find it at your  web-shop Dashboard.

Enter the order number in "Order number" field and press "Send now". After a few seconds the order is in Sync server, 
If you need to send more than one order then you have to refresh dashboard and enter the new order number.
Get plugin from here