I am using VS2019, and added a soap web services from NAV Web Services in Connected Services.

I am having problems in "Key" where it produces an error of "Error in deserializing body of reply message for operation 'ReadMultiple'."

what I suspect is that the Key uses timestamp and the service is having difficulty in recognizing the key/timestamp column. 

In c# code, the Key is auto identified as string but in the sql/backend of NAV the column is timestamp.

Does anyone have a fix/ workaround about this?