First off, I want to say that I've been testing your app and I am incredibly impressed. The design is clean, the concept is powerful, and it's so close to being the perfect tool for businesses like mine (I own a bakery).

I'm writing to you today to propose a new feature that I believe would be an absolute game-changer and would make your app an indispensable tool for a huge market of users.

The Proposal: Date-Specific Inventory

The idea is to evolve the current inventory system so that stock levels are tied to specific delivery dates, rather than having one general stock count that depletes as orders are created.

Here’s how it would work in practice:

Setting the Stock: In an "Inventory" section, I could specify my production capacity for a future date. For example, I could set my available stock for this coming Saturday to 10 cakes.

Placing a Future Order: Today (Thursday), a customer places an order for 1 cake to be delivered on Saturday.

The Magic: This new order would only reduce the available stock count for Saturday (leaving 9 available for that day). My inventory for Thursday and Friday would remain completely untouched.

Why this is a "Life-Changer":

It Solves Overselling: This would eliminate the single biggest operational headache for any business that produces fresh items daily: accidentally promising a customer a product for a future date when you've already reached your production limit.

It Unlocks True E-commerce: This feature is the key to confidently accepting online pre-orders. The system would automatically know what's available for any given day in the future and stop sales when a day's limit is reached.

It Becomes a Planning Tool: The app would transform from just an order tracker into a powerful production planning dashboard. I could see at a glance exactly what I need to prepare for the days ahead.

I understand that feature development is a significant undertaking, but I wanted to share this idea with you because your app has a fantastic foundation. Implementing this logic would, without a doubt, make it the best-in-class solution for any business that manages daily production.

Thank you for creating such a promising product and for considering my feedback. I'll be following your progress closely!

Best regards.

P.S. A Concrete Example of the Logic

To make the idea clearer, I built a small internal tool for my bakery that uses this exact logic. Here’s a conceptual breakdown of how it works:

Date-Centric Inventory: Instead of a single stock number, the total stock for each product is stored against a specific date. (e.g., inventory['2025-09-06']['cake_chocolate'] = 10).

Calculating Availability: When a customer wants to order for a specific delivery date (e.g., Saturday, Sept 6th), the system performs two steps:

First, it finds the total stock I set for that day (10 chocolate cakes).

Second, it calculates reserved stock by querying all orders where the delivery_date matches '2025-09-06' and sums up the quantities of that product. Let's say it finds 4 cakes already committed in other orders.

The Final Calculation: The available stock is then simply: Total Stock (10) - Reserved Stock (4) = 6 available units. The system knows it can safely sell 6 more cakes for Saturday.

This logic ensures that today's orders for future dates only affect the inventory of those specific future dates, giving the business owner perfect control and clarity.