I want Custom Full Cloud Billing Software (For Company)

I have multiple Stores, So I want a billing software, then I want to -- 1. Manage Inventory (Barcode System Also) 2. Manage Stores (Tracking Sales, Invoice, Inventory, top sales, Tracking report Low Inventory, etc) 3. Sending invoice (Email & What's app) 4. Daily Entry & Sales Report. 5. GST Filling Form. 6. Show a Profit and Loss (Daily, Weekly, Monthly, Quarterly, Yearly) Any other system also required You can take examples, Sleek Bill, Zoho, etc billing.