>>Hi again Naomi,
>>
>>how do I use this function in a computed field now? I've added the field to the table and put GetDatePaidTo(PolicyHeaderPK) as the formula but it tells me "Error validating the formula for the column" when I try to save the table definition.
>
>
>Looks like I need to enter it like this:
>
>([dbo].[GetDatePaidTo]([PolicyHeaderPK]))

Yes, for functions you always need to specify the schema.