Hi, According to our developers, due to customer labels having its own endpoint, making an oData filter on that object clashes with the data table, and the API does not allow this. The result if you want to make a filter on an object that has its own endpoint, it will most probably not work.   Workaround: Make a GET, and parse the customer label ... View more

Hi, Sorry for the delayed answer (sickness + vacation).   Unfortunately, this is how these two options work. One way could be that you create a text field on a voucher and define the invoice. ... View more