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Suherdy SYC. Yacob 2025-09-29 11:49:30 +07:00
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# Product Lot Sequence Per Product
This module extends Odoo's lot and serial number generation to support unique sequences per product, aligning Odoo 18 with the behavior introduced in Odoo 19.
## Features
- **Per-Product Sequence Configuration**: Define a unique sequence for lot/serial number generation for each product.
- **Inventory Tab Integration**: Configure the custom sequence directly on the product form under the Inventory tab.
- **Automatic Generation**: Lot/serial numbers generated during incoming receipts and manufacturing orders follow the product-specific sequence.
- **Fallback Mechanism**: If no sequence is defined for a product, it falls back to the global lot/serial sequence.
- **UI Enhancements**: Avoids generation of invalid "0" lot numbers in manual and wizard flows.
## Configuration
1. Navigate to **Inventory > Products**.
2. Open or create a product.
3. Go to the **Inventory** tab.
4. Set the **Custom Lot/Serial** prefix to define a new sequence or select an existing sequence from the **Lot Sequence** field.
5. The **Next Number** field displays the next lot/serial number that will be generated.
## Behavior
- **Incoming Shipments**: When receiving products, if a product has a custom sequence, the generated lot/serial numbers will follow this sequence.
- **Manufacturing Orders**: When producing products, the finished lots/serials will be generated using the product's custom sequence.
- **Manual Creation**: Creating lots/serials manually or via "Generate Serials/Lots" will respect the product's sequence if configured.
## Technical Details
- The module adds a `lot_sequence_id` field to `product.template` to link the sequence.
- It overrides the `stock.lot` creation to use the product's sequence.
- It extends `stock.move` and `stock.move.line` to handle UI inputs and normalize "0" or empty inputs.
- It overrides `mrp.production._prepare_stock_lot_values` to ensure manufacturing flows use the product sequence.
## Dependencies
- `stock`
- `mrp`
## Compatibility
- Odoo 18
- Requires `mrp` module for manufacturing order support