Shopify Order Key Change

1. Order Create
   Orders.id<>customerOrderNumber

2. Fulfillment Create/Update using Shipment Create, Packed Event:
   customerOrderNumber: {{Orders.id}}
   Use Case:

   1. the Orders.id is used to Prepare "Create Fulfillment API" or "Update Fulfillment API"

   2. the Orders.id is also used to Prepare "Update Shipment Status API"

3. Mark COD Order as Paid when Delivered:
   customerOrderNumber: {{Orders.id}}
   Use Case:

   1. the Orders.id is used to Prepare "Transactions API"

Now if we map FulfillmentOrders.id<>customerOrderNumber

Then we would need to call https://shopify.dev/api/admin-rest/2021-10/resources/fulfillmentorder#%5Bget%5D/admin/api/2021-10/fulfillment_orders/%7Bfulfillment_order_id%7D.json API once we receive the Shipment Events and extract Orders.id and pass it in the remaining flow.