From Manual Stock Cards to a SaaS Used by Many Factories
An illustration of a manufacturing & inventory SaaS product for small-to-medium factories that need raw material and production stock in one subscription.
This is an illustrative concept, not a real client project — the data and results shown are examples to demonstrate what we can build.
Every factory manages its own stock. Raw materials often run out without warning.
When every factory manages raw material and finished goods stock with manual stock cards, it's difficult to build a single SaaS product that many factories can subscribe to consistently.
| Factory | SKUs Managed | System Status |
|---|---|---|
| Tekstil Jaya Factory | 142 | Automated |
| Logam Prima Manufacturing | 96 | Manual Cards |
| Plastik Sentosa Factory | 118 | Automated |
| Kayu Mandiri Manufacturing | 64 | Partially Manual |
It's not a lack of factories that need a system. It's that each factory manages stock separately.
Stock logged manually on stock cards
Some factories still use physical stock cards, hard to pull into one consistent dataset.
Raw materials run out without warning
Production is disrupted because raw material stock runs out undetected early.
Hard to scale to other factories
Adding a new factory means building a stock logging system from scratch again.
One product, subscribed to by many factories at once.
Each factory gets its own workspace (multi-tenant), but runs on the same underlying inventory system.
Factory Signs Up
A new factory signs up and gets its own workspace (tenant).
SKU & Initial Stock Setup
Raw material, finished goods, and initial stock data are entered into the system.
Daily Operations
Stock decreases/increases automatically based on production transactions.
Minimum Stock Alert
Automatic notification when a raw material nears its minimum threshold.
New Factory
Other factories can onboard through the same process.
Example: a SaaS with 6 subscribing factories.
An illustrative scenario based on common patterns among small-to-medium factories that each still manage stock manually. The figures below are examples to illustrate the system, not a claim of client results.
Multi-tenant SaaS for manufacturing & inventory
6 independent factories want the same stock system, but their data must stay separate between factories. Each needs its own raw materials, production, and finished goods stock.
- How does each factory's data stay separate and secure?
- How can a new factory onboard quickly?
- How is raw material stock monitored automatically before it runs out?
Illustrated automation architecture
EXCEPTION → raw material falls below the minimum threshold → automatic notification sent to the factory's procurement team
- 6
- Example Factories
- 1
- Codebase
- 0
- Sudden Stockouts
subscribing on one platform
used by all factories (multi-tenant)
thanks to automatic alerts
The key change is how these factories manage stock at the same time.
Before / stock cards per factory
- Each factory logs stock manually on its own
- Raw materials run out without warning
- New factory onboarding built from scratch
- Hard to see performance across factories
- Updates rolled out one at a time
After / one multi-tenant SaaS
- All factories use the same inventory system
- Raw material stock monitored automatically
- New factories onboard within days
- Cross-factory performance visible in one dashboard
- Feature updates apply automatically to all factories
Not just a digital stock card.
This product can be developed gradually as more factories join.
Multi-tenant platform
One product usable by many factories with data kept securely separate.
Raw material & finished goods stock management
Stock monitored in real time from production through to finished goods.
Minimum stock alerts
Automatic notification before a raw material truly runs out.
From manual stock cards to one SaaS, step by step.
- 01DISCOVERY
Map cross-factory needs
Identify the processes common to all factories (raw materials, production, stock) as the product baseline.
- 02FOUNDATION
Build the multi-tenant architecture
A data structure that keeps each factory securely separate within one system.
- 03CORE PRODUCT
Build the core inventory module
Raw materials, finished goods, and production transactions as the product's core feature.
- 04AUTOMATION
Automate stock alerts
Automatic notification before raw materials near their minimum threshold.
- 05OPTIONAL
Add further layers
If needed, an automatic purchase order module or production efficiency reports can be added.