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product_sale_price_from_pricelist/README.md

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+# Product Sale Price from Pricelist
+
+Automatically calculate and update product sale prices based on the last purchase price and configurable pricelists.
+
+## Features
+
+- **Automatic Price Calculation**: Set sale prices based on last purchase price and a configured pricelist
+- **Flexible Discount Handling**: Choose how to apply discounts to the cost:
+  - Without discounts
+  - First discount only
+  - Double discount
+  - Triple discount
+  - Manual update
+- **Tax-Aware Pricing**: Automatically includes tax calculations in pricing
+- **UoM Conversion**: Handles different purchase and sale units of measure
+- **Batch Updates**: Update theoretical prices for multiple products
+- **Product Flags**: Mark products for price updates and track status
+
+## Configuration
+
+1. **Settings > Sales > Automatic Price Configuration**: Select the pricelist for automatic price calculation
+2. **Products > Products**: Configure per product:
+   - **Last purchase price**: Cost at which the product was last purchased
+   - **Last purchase price calculation type**: Choose how to apply discounts
+   - Mark **Last purchase price updated** when prices need to be reviewed
+
+## Price Calculation Types
+
+- **Without Discounts**: Uses base purchase price without discounts
+- **First Discount**: Applies only the first discount
+- **Double Discount**: Applies first and second discount
+- **Triple Discount**: Applies first, second, and third discount
+- **Manual Update**: Price must be set manually
+
+## Usage
+
+1. Products are priced when received from purchase orders
+2. System automatically updates **last_purchase_price** field
+3. Sale price is calculated from the configured pricelist using the cost price
+4. Taxes are automatically applied based on product tax settings
+5. Go to **Products > Update Theoretical Prices** to batch update prices
+
+
+## License
+
+AGPL-3.0 or later