How to manually change on hand numbers for individual products so they can be added to an invoice.

To manually change the on hand amounts you will first need to click on your Inventory tab & make sure you are under the link Browse and Search:

From there you will want to locate the product you are wanting to change your on hand amount for. You can do that by clicking in the search bar and typing in the name or product number. Once the product pops up there will be an Actions drop down menu beside it. By clicking on that you will see an Adjust On Hand option. 

Another screen will pop up asking you to enter in the On Hand amount for the product as well as the adjustment type. Be sure once you choose that you click on the SAVE option at the bottom so that your on hand amount is changed.