Online Grocery Mobile App

I am looking for a mobile app for my online business Online store will be Multi Vendor based Owner / Admin can access each and every thing Admin can access all data of seller / buyer / deliver person Admin get notification on 1. Buyer order details 2. Seller details 3. Deliver person details 4. Oder details ( Oder Number , Number item order .Bill number and payment method , Cancel ) 5. If COD ( get SMS after receive the payment ) Seller gets notification on 1. Buyer order ( seller can’t see buyer information) 2. Deliver person Details 3. Oder details (Oder Number , Number item order .Bill number and payment method and Cancel ) # seller can’t see other seller order details Deliver Person get notification 1. Buyer details 2. Seller details 3. Oder details (Oder Number , Number item order .Bill number and payment method and Cancel ) Buyers get notification 1. Order place notification 2. Shipping track detail 3. Payment notification Payment method 1. Net banking 2. Debit/Credit Card 3. Wallet/UPI and COD Order goes to 1. Nearest seller 2. Nearest deliver person 3. If 1st nearest seller have item is not able then goes to 2nd nearest seller Notification 1. Admin can give the notification to all buyer & seller ( buyer notification can’t see by seller & seller notification can’t see by buyer ) (notification send to Mob_No and email at time) Offer / Gift / Discount 1 Admin and seller can give the offer to buyer( Order wise or monthly purchase wise ) 2 Admin can give the offer to the seller on the monthly sell price Shipping Fee 1 Admin can set the price ( according the order price ) Shipping Track 1 Admin 2 Seller 3 Buyer 4 Deliver person Cancel 1 Admin can set the time for cancel ( it may hours basics or day basics after deliver the item) 2 Before deliver buyer can cancel any time . Bill 1 Admin can get bill on each order number and total billing of respect each seller ( daily , weekly and monthly ) 2 Seller can get bill on each order number and total billing ( daily , weekly and monthly ) 3 Buyer can get bill on each order monthly bill order (admin can stop send monthly bill and) Profile 1 Seller shop address , Mob_No (Email_id , Photo , ID proof ( any Gov document )and about us optional ) ( if GST Number ) 2 Buyer Address Mob_No ( Email_Id , Photo and about us optional ) 3 Deliver person Address , Mob_No ID proof ( Email,Photo and about optional ) Category Show 1 Admin can add , delete and edit 2 Item show category wise and option for show all item You can suggestion me if anything to add or edit. Because you know better than me so your suggestion is acceptable Payment - INR 20,000/-