Error "tstamp cannot be empty" when doing a PUT on supplierinvoice with addPoLines

[ErikW]

We are getting the error tstamp cannot be empty when trying to update a supplier invoice using the endpoint: "/controller/api/v1/supplierInvoice/{documentType}/{invoiceNumber}". This is replicateable for the customers environment (tenant id: 91a72b61-baa7-11ea-973a-0ac295605980) and the JSON body: 

{"SupplierNumber":{"Value":"51169"},"SupplierReference":{"Value":"61712917"},"Note":{"Value":"https://cloud.mediusflow.com/******/#/Tasks/ShowDocument/108364"},"CurrencyId":{"Value":"NOK"},"DueDate":{"Value":"2024-10-27T02:00:00+02:00"},"Date":{"Value":"2024-09-17T02:00:00+02:00"},"SupplierTaxZone":{"Value":"10"},"PaymentRefNo":{"Value":"617129176"},"CashDiscountDate":{"Value":"2024-10-27T02:00:00+02:00"},"InvoiceLines":[{"LineNumber":{"Value":1},"Operation":"Delete"},{"LineNumber":{"Value":2},"Operation":"Delete"}],"DocumentType":{"Value":"Invoice"},"addPOReceiptLines":[{"poReceiptNumber":{"Value":"016162"},"poReceiptLineNumber":{"Value":1}}]}

This error has been repeatedly occuring since tuesday. Any ideas or suggestions? This seems to only occur when we have the field addPOReceiptLines is containing a value.

[Marten Voort]

Hi Erik! Thx for your post, I have analysed this and was able to reproduce the scenario. I have reported this internally and will come back to you when I have more information.

[ErikW]

Thank you! This is quite critical for our customer so when can we expect an answer?

[Marten Voort]

Our development team has pinpointed the issue causing this particular behavior. A solution is now being tested, and findings look promising. We'll keep you posted as we progress. Thank you for your patience and understanding.