making customer ledger and its all remaining balance in invoice also in my my opensource pos codeigniter project

Hi all i want some changes on my php codeigniter pos sales page also need some validation and added few filed.

[login to view URL] has already inventory management but its show only one item on one time i want making new item/inventory page that show my items and inventory by input filter and if item not found then using same filed they also create it and enter new or update inventory too

i have

example select category-> then show all item name filter by category then user select name then show all my custom1 filed filter by name so on.

[login to view URL] filed i want in my sale page also its already have barcode with search item/cat but

i want it same as that i mention above when i select same filter apply and add to cart and aslo

on sale page i want that user add new packing price that added after i add item.

3. i want that my all customer ledger maintain and change my sale page something like that i attached pic

[login to view URL] invoice its show customer all previous and current balance.

[login to view URL] have report but its not show due amount i want that report also show customer due amount.

Codeigniter MVC MySQL PHP SQL

Project ID: #8745688

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