The online sale will appear on the POS terminal for the outlet that day only

It can also be identified by the Sales Report or Fulfilment report using the filters for the salesperson = Trans or the checkbox for online sales/instore sales. 

The Customer is created and all of the stock on the order will move from AVAILABLE to ALLOCATED.  This means a retail customer trying to purchase this item at POS will be told it is already allocated.

If you click on the red box you can then follow the normal fulfillment cycle as you would for Retail Express.

You now need to do the fulfillment, this will allow you to help the Retail Exprress system to consider any stock transfers that may be needed between outlets to fulfil the order.  

The integration can be configured to any sales channel according to your setup. Please refer to the Retail Express's Sales Channels Overview article.