This can be done both on the computer and on the iPad.
In order to check a product into your inventory, you need to have a vendor to purchase it from. To create a vendor on your computer, follow the steps below:
1. Click “Inventory”
2. Select “Vendors”
3. Click “+Add New Vendor”
4. Enter all the required information and click 'Save'.
Please, refer to this short video how to add a vendor on your iPad.