Before creating a purchase order it is very important to have already added the supplier and the products that will be registered in the purchase order. Afterwards you can find how to create a Supplier and create products within our documentation.
Create a Provider: https://samson-manage.com/how-to-create-a-providers/
Create a Product: https://samson-manage.com/products/
To create an order just go to the module Finance> Purchase Order> New, the system will display a form where we have to fill in simple supplier data, such as: Project, To (Supplier), Expected delivery date, Order by, Status, Notes, Code Material, PO Number and finally Product, where we can add all the products we need. After this we will have the order created, which we can convert to PDF for quick printing.