1. Make sure that you have both the PRODUCT and VENDOR entered in the system. If you don't know how to do that the links are below!
How to create a product: http://help.m2oapps.com/support/solutions/articles/19000058674-how-to-create-a-product
How to add a vendor: http://help.m2oapps.com/support/solutions/articles/19000060548-how-to-add-a-vendor
2. Select ADMIN
3. Select PURCHASE ORDERS
4. Select CREATE PURCHASE ORDER
5. Enter in all the required fields about your vendor and select save
6. Then begin to add the products you would like to order by selecting ADD
7. Enter all the required information about the product you wish to order and select submit changes.
8. Then select save and your order is saved to the system!
Here is a quick walkthrough video on how to create a purchase order: