How to Integrate Stellar Delivery Date & Pickup with Fulfillment Platforms?

We are saving our order delivery date on Shopify’s order page by passing the parameter to notes as additional details.
Some third-party order fulfillment services are using ORDER API to get order details.
In order to get ORDER DELIVERY DATE details and send them to the third-party fulfillment integrations, please contact the third-party fulfillment app support team and tell them to pass our parameter to get order delivery details.