How to maintain a purchase order

First go to task bar then select purchase order option after that you see a new page open which is as follows.

This page is open when u click on purchase order option . in this picture u see the Performa of purchase order.

In this picture we should maintain vendors account for further proceed. We should enter id or name for purchase order.

Then we enter  quantity  and item which we should buy or purchase .

In this pic we should enter item id and description of item which we should purchase.

Then fill all the necessary columns which we needed.

Then we should enter quantity and order no is compulsory.