Questions Sales Order Customer Lookup

Hi again Tim,
 Hope all is well.
I'm attempting to initially sort the customer lookup by account name.
In the DAC, selecting SO.SOrder and Customizing the attributes, I selected "Replace Original" and added this: 

[PXDefault]
[CustomerActive(typeof(Search<BAccountR.bAccountID,Where<Customer.type, IsNotNull,
Or<Current<SOOrder.aRDocType>, Equal<ARDocType.noUpdate>,
And<BAccountR.type, Equal<BAccountType.companyType>>>>, OrderBy<Asc<BAccountR.acctName>>>),
Visibility = PXUIVisibility.SelectorVisible, DescriptionField = typeof(Customer.acctName), Filterable = true)]

Notice I only added , OrderBy<Asc<BAccountR.acctName>>.

After a successful build and opening SOOrder screen, I get this error:
Error: The parameter length exceeds the allowed value.
Parameter name: types 

   at PX.Data.BqlCommand.Compose(Type[] types) 
   at PX.Objects.AR.CustomerAttribute..ctor(Type search, Type[] fields) 
   at System.Reflection.CustomAttribute._CreateCaObject(RuntimeModule pModule, IRuntimeMethodInfo pCtor, Byte** ppBlob, Byte* pEndBlob, Int32* pcNamedArgs) 
   at System.Reflection.CustomAttribute.CreateCaObject(RuntimeModule module, IRuntimeMethodInfo ctor, IntPtr& blob, IntPtr blobEnd, Int32& namedArgs) 
   at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean 

Thanks for your help.

--Paul