When we get a sale order for a product, Odoo creates the transfers for Pick and Delivery with no issues.  We have our Product Reservations set to "manually" because it works better for our business model.  When we go to reserve a product and click on "check availability" on the Delivery Order step it does nothing, there are plenty of product in stock and they are in a location that is able to be picked.  I manually added stock to the Output location because after reviewing the product page I noticed there was no stock in the Output location, almost like stock either vanished or did not transfer and retried check availability, it still did not work.  I made sure that the Destination location for the order picking was set to the Output location.  I am now at a loss, any help would be amazing.