You would like to maintain the Invoice Date and Posting Date in a Cancellation Invoice via OData but the CustomerInvoiceCancellationDate indicator in Customer Invoice and DeviatingPostingDate on cancellation invoice is not available in the oData service.
SAP Business ByDesign
Currently the CustomerInvoiceCancellationDate indicator and DeviatingPostingDate on cancellation invoice are not added in the oData service.
If you have a business requirement to add these fields you can add the requirement in SAP Business ByDesign Continuous Influence site.
KBA , AP-CI-CI , Customer Invoice , Problem