Forum Post: RE: Using Postman (JSON/REST), I Can create a SalesOrder but can't find out how to add SalesOrderLines

Hi Stefano, I'm a bit closer to solving this :-) This helped clarify the parameter issue. Thanks for that, but now I am having trouble with the URL ..../SalesOrder(Document_Type='Order', No='1063')/SalesOrderLine Giving me: "Resource not found for the segment 'SalesOrderLine' I am using ASP.NET CORE and no compliant Nuget packages exist yet, ergo the reason I am using raw http calls.