Problem:
Getting Error - invalid object type: InvoiceAdjustment when trying to perform a POST call on https://rest.apisandbox.zuora.com/v1/object/invoice-adjustment
Solution:
The object InvoiceAdjustments is deprecated. We have moved onto using the object InvoiceItemAdjustments instead.
You can use the https://www.zuora.com/developer/api-reference/#operation/Action_POSTcreate with a "type": "InvoiceItemAdjustment" to perform your invoiceItemAdjustments.
