Shopify App Requirement’s:(To build a public shopify app)
Restrict the Cash on Delivery or other payment and shipping method based on zipcodes.
You can also add an option of checking the availability of the Cash on Delivery payment
method and shipping availability directly on the product page, making it convenient for
customers to see if they will be able to use the service or not in advance.
You can manage all your zipcodes from the admin panel or can upload a csv file to bulk
update and insert..
Zipcode serviceability checkbox on product page. – along with expected transit time for each
Option to add serviceable zipcode for both Cash On Delivery as well as Prepaid payment
Option to enable or disable zipcode serviceability checkbox on Product page
You could upload the pin-codes’ sheet from the backend ( CSV format)