There is a permission called "Return invoice item reference in GET invoices REST" in our backend. If the tenant was created before Zuora Release 228 (R228), July 2018, the value of 'Return invoice item reference in GET invoices REST' is OFF by default. The tenants created after July 2018, the default value is ON instead. Here is the reference in our developer center. Please reach out to zuora customer support via support.zuora.com and raise a support ticket to request turn on this permission. Reference https://www.zuora.com/developer/api-reference/#operation/GET_TransactionInvoice
The below explanation will only work for Preview Subscription and Update Subscription. Get invoices is not related.
We only provide the latest yaml file. We are sorry for the inconvenience.
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