looking for support on this issue...
When I fetch this query I get the error message: "Field 'shareableUrls' doesn't exist on type 'DiscountCodeBasic'"
It works well in GraphiQL. GraphiQL was given read/write for Discount as was the private app. The private app is pointed at the Admin API
I apologize for the lateness in my reply. I had started my response on forgot to submit it.
What api-version are you making for these requests? The shareableUrls field was added in 2020-10.
If you're using version 2020-10 or later and still have the issue please provide a x-request-id from the response headers associated with API request.