On the Transaction for order the message, payment_details field is missing. We need this to get the payment reference so we can match against the export from our payment gateways.
message, payment_details is included on the Transaction in Rest API, but not in GraphQL.
However, I note that this is currently only available on the GraphQL Admin aPI unstable Endpoint - admin/api/unstable/graphql.json
Message and details like card brand, exp_year, exp_month, cvv_result, last 4 and more) would be returned in the receiptJson object on OrderTransactions on unstable though.