How does API impact changes in read and write operations?

Shopify Apps
1

read_customers, write_fulfillments, read_fulfillments, write_inventory, read_inventory, read_locations, write_orders, read_orders, write_products, read_products, write_third_party_fulfillment_orders, read_third_party_fulfillment_orders, write_merchant_managed_fulfillment_orders, read_merchant_managed_fulfillment_orders, write_shipping, read_shipping, write_locales, read_locales, write_custom_fulfillment_services, read_custom_fulfillment_services
Webhookversie2023-07
→ This is the data we are using to connect our supplier , so they receive the details about an order.

We are receiving the popup and mail , that there would be changes that will have an impact on our API.
The mail :

  • The delivery_category field has been removed from the REST Admin API ShippingLine.
  • The gateway, payment_details and processing_method fields in the Orders source have been removed. The REST endpoint orders/transactions.json and the GraphQL connection transactions provide the correct information per transaction set.

It’s the first time working with API’s and we do not understand why this would have impact on our API , as we are not using these fields.

Can someone help? And Explain please?