06 - Pricing & Discounts

Parent: [Webshop-Index Webshop Index] Previous: [Webshop-05-Variant-Selector 05 - Variant Selector] Next: [Webshop-07-Checkout-and-Orders 07 - Checkout & Orders] Source: Comfac Webshop Wiki - Chapter 06

Pricing Architecture

ERPNext's pricing engine handles all calculations:

1. Price List - Base prices per item 2. Pricing Rules - Discounts based on conditions (qty, customer, date range, etc.) 3. Coupon Codes - Additional discounts via codes 4. Tax Rules - Tax calculation

The webshop reads the results of these calculations but does not implement the logic itself.

Discount Calculation Flow

1. User adds item to cart
2. cart.py:apply_cart_settings() calls set_price_list_and_rate()
3. ERPNext pricing engine:
   - Reads Price List for base price (price_list_rate)
   - Checks Pricing Rules for discounts
   - Applies discount to get rate
4. calculate_taxes_and_totals() computes:
   - item.amount = rate * qty
   - doc.total = sum of all item.amount

Key Pricing Fields on Quotation



Field

Location

Contains

|---------|-------------|-------------|



price_list_rate

Quotation Item

Original price from Price List


rate

Quotation Item

Final price after discount


discount_percentage

Quotation Item

% discount applied


discount_amount

Quotation Item

Fixed discount amount


amount

Quotation Item

Line total (rate * qty)


total

Quotation

Sum of all item amounts


net_total

Quotation

Total after item-level discounts


discount_amount

Quotation

Additional order-level discount


grand_total

Quotation

Final total with taxes


coupon_code

Quotation

Applied coupon code


Missing: Discount Visibility
Critical Gap: While ERPNext calculates and stores all pricing data, the webshop templates do not display:
- Original prices (strikethrough)
- Discount percentages
- "You save" amounts
- Offer deadlines
- Total savings

See: [Webshop-10-Feature-Gap-Cart-Discounts Feature Gap: Cart Discounts] for implementation plan



Navigation: [Webshop-Index Webshop Index] | [Webshop-05-Variant-Selector Previous: 05 - Variant Selector] | [Webshop-07-Checkout-and-Orders Next: 07 - Checkout & Orders]