Smart Kitchens: Integrating Product Bundles & Manufacturing in ERPNext

Running a restaurant is about more than just great flavors—it’s about managing ingredients, kitchen preparation, inventory movement, and POS billing with precision. In high-volume environments like cafés, cloud kitchens, and fast-food chains, inventory accuracy is critical because every dish consumes multiple raw materials behind the scenes.

ERPNext offers a powerful solution by combining Manufacturing and Product Bundles. This blog explains how to implement a professional restaurant workflow using a practical Burger example.

Why Restaurants Need This Dual Approach

In a restaurant, the final menu item is rarely "manufactured" the exact moment a customer orders. Instead, kitchens typically:

1. Prep in advance: Semi-finished items (like patties or sauces) are made in bulk.
2. Assemble on demand: Final items are put together during the POS sale.

The Burger Logic

• Manufacturing: Potato + Bread Crumbs + Onion →  Veg Patty
• Product Bundle: Bun + Veg Patty + Onion →  Burger

The Complete Workflow Architecture

1. Raw Materials & BOM: Inputting the ingredients and the "recipe" into the system.
2. Work Order: Triggering the request for the kitchen to start prep.
3. Manufacturing: The conversion process where raw ingredients are "consumed" in the system to create Veg Patty Stock.
4. Product Bundle: Linking that semi-finished Patty with other "instant" items (like Buns and Lettuce).
5. POS Sale: The front-of-house transaction.
6. Ingredient Consumption: The final step where the system automatically deducts all sub-items from your inventory.

Step-by-Step Implementation

Step 1: Create Raw Material Items

Navigate to Stock → Item → Add Item. Create items like Potato, Bread Crumbs, Onion, and Buns.

Example: Potato Configuration

• Maintain Stock: Enabled
• Allow Purchase: Enabled
• Allow Sales: Disabled (since you don't sell raw potatoes to customers)
• Allow True:  Include Item In Manufacturing (if this is not true you can not add this product in BOM)

Step 2: Create Semi-Finished Item (Veg Patty)

The Veg Patty is something you make, store, but don't sell individually.

• Maintain Stock: Enabled
• Allow Purchase: Disabled
• Allow Sales: Disabled

Step 3: Create the Bill of Materials (BOM)

Navigate to Manufacturing → Bill of Materials. This is your recipe.

• Item: Veg Patty (Qty: 1)
• Materials: Potato (0.2kg), Bread Crumbs (0.05kg), Onion (0.02kg).

Arrange and receive the required raw materials in warehouse

Step 4: Manufacturing (Work Order & Finish)

When the kitchen preps 50 patties:

1. Create a Work Order for 50 Veg Patties and it automatically fetches materials from the BOM.
2. ERPNext calculates the total raw material requirement based on the production quantity.

   

Step 5: Create the Final POS Item (Burger)

Navigate to Stock → Item. The Burger is a "Non-Stock" item because you don't keep "finished burgers" in a freezer; you assemble them fresh.

• Maintain Stock: Disabled
• Allow Sales: Enabled

Step 6: Create the Product Bundle

Navigate to Selling → Product Bundle.

• Parent Item: Burger
• Child Items: Bun (1), Veg Patty (1), Onion (0.02kg).

The Result: Seamless POS Sales

When a waiter sells a Burger in the POS:

1. ERPNext recognizes the Product Bundle.
2. It creates the POS Invoice of Product Bundle Item and automatically reduces the stock of the Bun, the Veg Patty, and the Onion.
3. No manual inventory adjustments are required by the kitchen staff.

Stock Ledger Impact (After selling 2 Burgers)

Benefits of this Setup

• Accurate Ingredient Tracking: Know exactly how much onion or potato you have left.
• Real-time Visibility: See your semi-finished (prep) levels instantly.
• Scalability: Perfect for multi-location franchises and cloud kitchens.
• Reduced Waste: Identify discrepancies between prep-made and items-sold.

By mastering the link between Manufacturing and Product Bundles, your ERPNext setup transforms from a simple billing tool into a professional kitchen management system.