I am using Laserfiche SDK 10.2 to save a document to laserfiche, when trying to update meta data field that has "#" in the field name,

fvlist.AppendValues("Contract #", new object[] { 123 });

it received an error  [9054] One or more required fields were omitted or had a blank value. 

But if we change the field name to "Contract ID" (replace # with ID), everything worked file.

fvlist.AppendValues("Contract ID", new object[] { 123 });

Any idea how to fix it without replacing the #?