# Week 2 Implementation Guide: Manufacturing (MRP) + Multi-Output BOM + Yield/Wastage

This guide explains what Odoo Community Edition already provides, what we built custom, and how to verify each feature.

---

## Odoo Community vs Custom — What You Get

| Feature | Odoo Community | C2C Custom |
|---|---|---|
| Work Centers (Cleaning, Grading, Packing) | ✅ Built-in | — |
| Standard BOM + Single Finished Product | ✅ Built-in | — |
| Operations/Routing on Work Centers | ✅ Built-in | — |
| Byproducts on BOM | ✅ Built-in (1 extra output) | — |
| Standard Costing + Labor on Work Centers | ✅ Built-in | — |
| Scrap during MO | ✅ Built-in | — |
| **Multiple Finished Products per BOM** | ❌ Not supported | ✅ `c2c_multi_output_bom` |
| **Stock moves per output on MO completion** | ❌ Not supported | ✅ `c2c_multi_output_bom` |
| **Yield % / Wastage report per batch/lot** | ❌ Not supported | ✅ `c2c_yield_wastage` |
| **Auto-generate yield record on MO done** | ❌ Not supported | ✅ `c2c_yield_wastage` |

---

## Step 0 — Initial Settings Configuration (For a Fresh Database)
If you are deploying this on a brand-new database, you **must manually turn on** these advanced Odoo features before the custom features will appear.

**Turn on Manufacturing Features:**
1. Open the **Manufacturing app**.
2. Go to **Configuration > Settings**.
3. Under the **Operations** section, check the box for **Work Orders**.
4. Click the purple **Save** button at the top left.
*(Note: If you do not do this, the "Work Centers" menu will remain completely hidden!)*

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## Step 2.1 — Standard MRP Configuration

### (Step 2.1.1) Create Work Centers
1. Open **Manufacturing** app > **Configuration** > **Work Centers**.
2. Click **New** and create the following 4 work centers for C2C Agricorp:

| Work Center | Company | Cost per Hour |
|---|---|---|
| Cleaning Station | C2C Agricorp India Pvt Ltd | ₹150 |
| Grading Table | C2C Agricorp India Pvt Ltd | ₹200 |
| Packing Line | C2C Agricorp India Pvt Ltd | ₹250 |
| Stringing Station | C2C Agricorp India Pvt Ltd | ₹180 |

3. On each Work Center form, set the **Costing Method** to `Time-based` and set the **Cost per Hour**.


### (Step 2.1.3) Set Standard Cost on Raw Materials
1. Open **Inventory** > **Products** > **Products**.
2. Open **Raw Turmeric** (or your flower product).
3. Under the **Purchase** tab, verify the cost.
4. Under **General Information** > **Product Type**: set to `Storable Product`.
5. Go to **Accounting** tab > **Costing Method**: should read `Standard Price`.

---

## Step 2.2 — Multi-Output BOM (`c2c_multi_output_bom`)

This custom module allows a single BOM to produce **multiple finished products** in one Manufacturing Order.

### How to create a Multi-Output BOM (Example: Roses)
1. Open **Manufacturing** > **Products** > **Bills of Materials**.
2. Click **New**.
3. Set:
   - **Product**: `Pack 500g Roses` (your primary/main output)
   - **Quantity**: `200`
   - **BOM Type**: `Manufacture This Product`
4. In the **Components** tab, add: `Raw Roses | 100 kg`.
5. Click the **Output Products** tab (new custom tab).
6. Click **Add a line** and add co-products:

| Output Product | Quantity | Notes |
|---|---|---|
| Pack 500g Roses (Stems) | 5 | Byproduct stems |

7. **Save** the BOM.

### How to run a Multi-Output Manufacturing Order
1. Go to **Manufacturing** > **Manufacturing Orders** > **New**.
2. Select the **BOM** you just created. The **Additional Outputs** tab will appear automatically with your co-products pre-filled.
3. Set the **Actual Qty** for each output on the **Additional Outputs** tab.
4. Assign **Lot/Batch** to each output line (for FEFO traceability).
5. Click **Mark as Done**.
6. ✅ Odoo will automatically create separate stock moves for EACH output product into your finished goods location.

---

## Step 2.3 — Yield & Wastage (`c2c_yield_wastage`)

This module auto-generates a yield report every time a Manufacturing Order is marked as Done.

### How Yield is Calculated
```
Input Qty  = Total raw materials consumed
Output Qty = Finished goods produced (what went to stock)
Wastage    = Input - Output
Yield %    = (Output / Input) × 100
```

### How to View Yield Reports
1. Go to **Manufacturing** > **Reporting** > **Yield & Wastage** (new menu).
2. You will see a list of all completed MOs with their yield data.
3. **Colour coding**:
   - 🔴 Red = Yield below 70% (critical — investigate)
   - 🟡 Yellow = Yield below 85% (warning — review process)
   - ✅ White = Yield 85% and above (acceptable)
4. Click any record to open the form view with full detail, lot traceability, and a **Notes** field to record root cause.

### Smart Button on MO
After marking an MO as Done, go back to the Manufacturing Order. A new **Yield Reports** smart button (bar chart icon) will appear in the top right of the MO form. Click it to jump directly to the yield data for that batch.

---

## Step 2.4 — Manufacturing Cost Rollup

### How to include labor/overhead in finished goods cost
1. Open **Manufacturing** > **Configuration** > **Work Centers**.
2. Open each work center. Set the **Cost per Hour** (labor rate).
3. On the BOM, under the **Operations** tab, add:
   - Work Center: `Grading Table`
   - Duration: `30 minutes`
4. When the MO is completed, Odoo's `mrp_account` module (already installed) will post:
   - **Raw material cost** → Debit Work In Progress
   - **Labor cost** (time × rate) → Debit Work In Progress
   - On MO done: WIP transfers to Finished Goods at the rolled-up total cost.

### Verify Cost Rollup
1. Complete an MO for `Pack 500g Roses`.
2. Go to the MO form > Click the **Valuation** smart button (if visible, requires Inventory Valuation enabled).
3. Also check: **Accounting** > **Journal Entries** and filter by `Manufacturing`.

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## Verification Checklist — Week 2

- [ ] **Work Centers** created (Cleaning, Grading, Packing, Stringing)
- [ ] **Multi-Output BOM** created with Output Products tab visible
- [ ] **MO completes multi-output** → verify 2+ stock moves created in Inventory > Transfers
- [ ] **Yield report** auto-generated after MO completion
- [ ] **Yield & Wastage report** visible in Manufacturing > Reporting
- [ ] **Color coding** works — try an MO where output < 70% of input
- [ ] **Journal entries** posted for raw cost + labor cost on MO completion

---

## Example: Jasmine Stringing Flow

**BOM Setup:**
- Primary Output: `Bundle (3m) Jasmine` — Qty: 20
- Component: `Raw Jasmine` — 100 kg
- Output Products tab: *(none — single output, standard flow)*
- Operations: `Stringing Station | 2 hours`

**Expected Results after MO Done:**
- 20 x Bundle (3m) Jasmine moved to Finished Goods ✅
- Yield Report created: Input 100kg, Output ~60kg equivalent, Yield ~60% ✅
- Journal Entry: Raw Material Cost + (2hr × ₹180) = Total COGS ✅