31 lines
2.0 KiB
Markdown
31 lines
2.0 KiB
Markdown
# MPB Bottom-Up Replenishment (Two-Way MPS)
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## Overview
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This module (`mrp_mps_bottom_up`) enhances the standard Odoo 19 Master Production Schedule (MPS) by introducing a "two-way" propagation of manual replenishment quantity changes.
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In standard Odoo MPS, modifying the replenishment quantity of a top-level component (`FG1`) creates downward indirect demand for its sub-components (`FG` or `WIP`), but modifying a sub-component (`FG`) has no effect on its parent (`FG1`).
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This module intercepts manual edits to the `replenish_qty` cell and automatically:
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1. **Traces Up (Bottom-Up):** Calculates the equivalent base quantity required for any parent products and seamlessly updates their replenishment quantities in the same period without triggering infinite loops.
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2. **Drills Down (Top-Down):** Calculates the equivalent quantity required for child components and explicitly pushes this demand down.
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It fully supports sub-component scaling based on correct BOM ratios.
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It includes built-in compatibility with custom packaging quantities (e.g. from the `mrp_packaging_qty` module), accurately multiplying or dividing base units by packaging multipliers during the Drill Down operation.
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## Installation
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Add the module to your custom addons directory and install it via the regular Odoo `Apps` menu. The module implicitly depends on the core `mrp_mps` enterprise module.
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## Usage
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1. Open the **Master Production Schedule** view.
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2. Ensure you have product hierarchies defined with BOMs (e.g. `Product A` requires 2x `Product B`).
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3. Add both `Product A` and `Product B` to your MPS view.
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4. If you artificially increase the Replenishment for the child `Product B`, you will see `Product A` automatically adjust to reflect the scaled parent demand.
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5. If you increase the Replenishment for a middle component, you will observe the quantity propagate up to parents AND down to children simultaneously.
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## Dependencies
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* `mrp_mps` (Core Odoo Enterprise module)
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* Compatible with `mrp_packaging_qty` (Custom Module)
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## License
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Licensed under LGPL-3.0.
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