Shopify Custom COD Checkout App Development

### Shopify Public App Development – COD Checkout Form (Relessit-like)

I am looking to build a **Shopify Public App** that enables merchants to replace the default checkout with a **Cash on Delivery (COD) Order Form**, similar to apps like Relessit.

### Project Requirements:

* Develop a **Shopify Embedded Public App**
* Custom **COD Order Form** that replaces or works alongside Shopify checkout
* Form fields:

* Customer Name
* Phone Number (with OTP verification optional)
* Address (multi-line)
* Product details (auto-fetch from store)
* Quantity selector
* Ability to create **orders directly in Shopify Admin via API**

### Features Needed:

* One-click **“Buy Now (COD)” button** on product pages
* Customizable form design (colors, fields, layout)
* **Order confirmation via SMS / WhatsApp (optional integration)**
* Basic **analytics dashboard** (orders, conversion rate)
* Support for multiple products & variants
* Admin panel for managing settings

### Technical Requirements:

* Frontend: React (Shopify Polaris preferred)
* Backend: Node.js / Express (or similar)
* Shopify APIs:

* Admin API (Order creation)
* App Bridge (Embedded app)
* Authentication using **session tokens**
* Must follow Shopify Public App guidelines

### Deliverables:

* Fully functional Shopify Public App
* Tested on development store
* Ready for **Shopify App Store submission**
* Clean, scalable, and documented code

### Bonus (Optional but Preferred):

* OTP verification system
* Abandoned COD order tracking
* Multi-language support

### Timeline:

* Expected delivery: 10–20 days

### Budget:

(Open to proposals based on experience)

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Looking for an experienced Shopify app developer who has worked on **custom checkout / COD apps** before.

Please share:

* Previous Shopify app work
* Relevant portfolio
* Estimated timeline & cost