A Bill of Materials (BoM) acts as the "recipe" for your manufacturable products. It defines exactly which raw materials are needed, how long production takes, and where the manufacturing happens.
You must set up a BoM for a manufacturable product variant before Tightly can recommend producing it.
Location: Navigate to Inventory → Bill of Materials tab and click Create New BoM.
The Setup Flow
1. Select the Manufacturable Variant
Choose the specific product variant you want to produce (e.g., Canvas Tote Bag - Blue).
This variant will be marked as "Manufacturable" in the system.
2. Select Raw Materials
Select the raw material variants required to make this product (e.g., Blue Canvas Fabric, White Thread, Logo Label).
You can select multiple raw materials from your existing inventory list.
3. Define Material Usage & Batch Size
This step defines the quantities required for production.
Batch Size: Enter the number of units you produce in a single run.
Why? Production rarely happens one unit at a time. If you bake cookies, a single batch might yield 50 cookies.
Material Usage: Enter how much of each raw material is needed to create one full batch.
Example: If your Batch Size is 10 units, and you need 2 meters of fabric total for those 10 units, enter 2 for the fabric usage.
Note: Inputs must be whole numbers (integers).
4. Set Lead Times
Tightly calculates when your product will be ready to sell.
Raw Material Lead Times: Pre-filled based on your existing supplier data.
Additional Preparation Time: Enter the time needed for internal production, assembly, or packaging (in days).
5. Select Manufacturing Warehouse
Choose the specific warehouse where physical production takes place.
Tightly will check this warehouse for raw material availability.
Restriction: A product variant can currently have only one designated manufacturing warehouse.
6. Review & Confirm
Review a summary of your configuration.
Check that your Batch Size and Usage quantities are correct.
Click Confirm BoM Setup.
What Happens Next?
Once you save the BoM:
The product is now officially treated as Manufacturable.
Smart Replenishment will stop recommending you buy this finished good. Instead, when demand spikes, it will recommend you a Manufacturing Order.
The BoM will appear in your Bill of Materials list, where you can edit or duplicate it later.