Shopify Fullfillment API no request from shopify

Hello. Our team is implementing Fulfillment Service API functionality to work with FulfillmentOrders. We have created functionality based on this documentation: https://shopify.dev/apps/fulfillment/fulfillment-service-apps. And we faced with strange issue for which we can not find way to resolve. We receiving from Shopify request only to get product stock but not to get shipping information and order cancellation. Do we need to get some extra approve from Shopify or we missed something?