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Shopping Cart Jr.
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Business Logic

icon picker
Shopping Cart

Product Card Configuration:
CARD
Header
Category
Body
Image
Description
Stock
Qty
Action
Add Button

Shopping Cart Configuration:
Table of shopping list
PartNumber / SKU / Product ID
SKU Definition →
https://en.wikipedia.org/wiki/Stock_keeping_unit
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SKU Article →
https://www.investopedia.com/terms/s/stock-keeping-unit-sku.asp
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Product description
qty
unit price
subtotal price
vat
subtotal
total

Purchase Policies:
There is two ways to do a purchase:
If is a

Purchase Flow
User Navigate through the web page
Select product quantity
Validate stock availability
Add the product to the cart
Validate consolidation
Confirm Purchase
Validate stock availability before to place order
If stock has changed
purchase needs to be ajusted
L.T. needs to be confirmed (wait until new income arrival)
Best Practice → Avoid the purchase from adding to cart
Once PO its placed, purchase can´t be changed
at least not for this project scope
you can do a complementary PO → but has its own lead time different than first one
Monitoring → user can see its POs and statuses

Purchase vs Stock Constraints:
Variables:
Stock availability
Stock threshold
Kanban reorder point
Number of online users with the same needs
Ratail lock-box → sistema de apartado
Very difficult to deploy at this point
we need to involve other business operations, like replenishment and company purchasing
Financial policies → cash in advance
Purchase
Pre-order → Validate stocks before purchase
This a possible solution → poka-yoke, don´t sell if it´s not available
Needs a kind of complex → online users, stock availabiliy, stock threshold
On-Transaction → Validate stocks at the very moment of the transaction
This is the most complex option
Might be a mess if many users go for it at the same time
More analysis and resources required
Post-Transaction → Validate stocks after purchase has been placed
The most easy way
cons → needs replenishment in order to have a consolidated freight
Shared stock
if someone buys the same as you
who its going to have priority ??
what is the criterial to do that ??
company policies

Stock Analysis:
Replenishment
Movements
Purchases
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