I am encountering while trying to update shipping lines for orders via the Shopify API.
When I update the note section for an order using the API, the changes are applied successfully and I receive a 200 OK response from the API. However, when I try to update the shipping lines for the same order using the API, the changes aren’t being applied and the shipping lines remain unchanged.
I’ve checked that I’m using the correct API endpoint and request method (PUT with /admin/api/2023-01/orders/{order_id}.json) and that I’m sending the correct data in the request body. I’m also receiving a 200 OK response from the API when I make the request to update the shipping lines, but the changes aren’t appearing in the Shopify admin interface or in the storefront.
Could you please advise on what could be causing this issue and how I can resolve it? Is there anything else I should check or any additional permissions I may need to update shipping lines for orders via the API?
Thank you for your help.