Application review rejected

One request for assistance in reviewing was rejected, which required the order details to be displayed on the Request fulfillment button. This is a picture of the email https://screenshot.click/17-18-83237-92609.png How can I display it? The email feedback mentioned FulfillmentOrderSubmitFulfillmentRequest. The entire process is that the user operates a certain function on my application and then initiates a FulfillmentOrderSubmitFulfillmentRequest request. After the request is successful, will this button appear on the order details page of the user’s Shopify store? I tried to serve and request FulfillmentOrderSubmitFulfillmentRequest, but the interface prompted but the interface prompted The fulfillment order’s assigned fulfillment service must be of api type , I am puzzled as to why this feature must be implemented and how to achieve it