Thanks for the answers. I have solved it (for now) with a global business rule and a rest-datasource(see screenshots). Its working...however that is more then a workaround ;-) Behind this particular REST service is a big database containing about 90.000 records. I cannot get ALL and filter the
I want to use a REST DataSource to get customer information (ie name) via customer number. I have a form with a customer number field. I have a REST DataSource "REST GET CUSTOMER DATA" (..../getKundenData?customernumber=CUSTOMERNUMBER.Standard) which returns a json with all relevant customer data.