title: How can I implement modifiable products (which are subscriptions) in Shopify?
body: <p>I've implemented subscriptions through ReCharge where users can select products and these are saved as line item properties for that product. This was the only solution I could think of with my limited time using Shopify.</p>
  
  <p>Per <a href="https://stackoverflow.com/questions/13660862/update-remove-cart-attributes-in-shopify">this question</a>, it seems like line item properties are read-only after checkout. If this is truly the case, is there any solution that enables having modifiable subscriptions where users can re-select products for that subscription product that I can implement?</p>
  
  <p>I'm using Shipstation for the shipping piece if this matters at all.</p>