Never do anything directly on a live store. First setup and test on a development domain (i.e. “dev.url.com”).
Temporarily disable Magento cache
To avoid any possible issues with the installation we recommend disabling Magento cache before proceeding with the installation and re-enabling it once the install is complete.
Unzip the extension zip file and upload all files and folders of Backend and Purchase extension to the root folder of your Magento installation.
For how to enable magento 2 module follow this link.
Purchase Order provides you a summarized listing page to manage all suppliers. From this view, you can enable/disable/delete suppliers in mass or view/edit each one in details. Supplier is a person or company from where you can purchase your store product.
After creating supplier you can see the supplier list. You can edit or delete from here
>> You can manage price list which provides the supplier. From here you can decide the best supplier.
Create price list: For creating pricelist go to Manage pricelist then Add pricelist
>>Then you should select product
Purchase Order is one of the most difficult parts to handle in inventory management but we will give you a hand with Purchase Management. In our extension, you can create a new purchase order manually or convert it from a quotation. If you have had quotations in the system, we do recommend you convert them to purchase orders, which save 90% of your time and eliminate any errors.
Create purchase order: You can create purchase order from "Create new Purchase Order"
>>Then you have to select product from the supplier.
Shipping information: Provide the shipping address, method payment method etc.
Receive Product: After successful placing order, you should receive the product now. How many product you find it will provide and mention the receive quantity and price, tax, etc.
Create Invoice: Now your task is to create invoice.
Mention the quantity, price, tax etc.
Now your task is to mention template variable on PDF template.
Mention the template variable in PDF template.
Mention the template variable in PDF template header.
Mention the template variable in PDF template body.
Mention the template variable in PDF template footer and design related css in template css.
Once again, thank you so much for purchasing this extension, I'd be glad to help you if you have any questions relating to this extension. No guarantees, but I'll do my best to assist