shopify website development with extensions

Below is the requirement, please share what more is required Currently website [login to view URL] Requirement: New user User stories Website must be desktop and an msite as well 1. Home page with call to action 2. Product catalogue & associated product listing page for admin 3. Individual product pages with detailed explanation of the product 4. Blog section & associated blog creation page for admin 5. Register 6. Add to cart 7. Payment - Add credit card 8. Subscription begin 9. Subscribe to Email newsletters [login to view URL] queries or callback + Ticketing mechanism + Rate resolution Old user 1. Login (OTP based) 2. Pause subscription 3. CANCEL subscription 4. View remaining deliveries 5. Change subscription 6. Add to cart 7. Subscribe 8. Subscribe to Email newsletters 9. Ask queries or callback + Ticketing mechanism with attachment + Rate resolution [login to view URL] to leave reviews the website System user 1. Login (email/password + OTP) 2. View list of customers and related info 3. View list of dropped of visitors and related info 4. Ability to send automated pre-configured SMS 5. Ability to send custom SMS by choosing a list of subscribers 6. Ability to send custom SMS by choosing a list of visitors (who dropped off) 7. Open/Close/Reply to tickets for a customer on their email IDs 8. Initiate Refund amount “to be custom entered” to a customer on their card 9. Send newsletters and blogspot via email [login to view URL] to link facebook, instagram feed, reviews and pics to the website [login to view URL] to decide which reviews to highlight on the website [login to view URL] multi-choice survey to customers on m-site and desktop along with textual or multi-select option feedback [login to view URL] to restrict orders based on PINCODE [login to view URL] to all dashboard data with MASKING on customer phone # and email ID [login to view URL] ticket count, critical/SLA breaching ticket count and open tickets list. Get SMS notification for tickets about to breach SLA [login to view URL] items to catalogue with attributes [login to view URL] time purchase only TRIAL item in catalogue (Rules) [login to view URL] new user discount [login to view URL] offers such as coupons and referral codes [login to view URL] to punch a new order on behalf of new customer with validations (+trial/subscription) ADMIN USER 1. Ability to add/delete system users email ID/password + phone # 2. Mandatory Approval for all action items of a system user 3. All item access of a system user 4. Ability to view customer Phone # and email ID 5. Ability to download all dashboard data 6. Ability to restrict access to specific items of system user 7. Ability to restrict access to specific dashboards of system user 8. Ability to define issue ticket Resolution and proactive alerts SLA in minutes. Get SMS notification Data and dashboarding requirements 1. Customers with low engagement (Login, reviews, blogpost views) 2. Customers with paused subscriptions, length of pause 3. Customers with paused subscriptions in last X many days 4. Customers with new subscriptions in last X many days 5. Customers with cancelled subscriptions in last X many days 6. Ticket resolution rates (avg time, mean time, 95th percentile, 99th percentile) 7. Feedback surveys and review scores 8. Coupon usage rate a. Customers subscribed post using a coupon 9. Referral rate Avg, and most referral oriented customers [login to view URL] analytics for every page and entire user journey a. New user journey from browse to signup to add to cart to address to payment to checkout [Entire conversion funnel] b. Old user journey for every page [login to view URL] ticket resolution metrics + ratings Reference websites: [login to view URL] [login to view URL]