#Error While formatting Date using todate function

Hi There,

I am new to all these. I am trying to display invoice date with if function. which is =If([Country]="France";[Invoice Date];" ") and it is returning right value for me in the table. the date format which is returning me is "dd/mm/yyyy".

Now i want to convert this to "dd mmm" format. so when I am using formatdate fucntion it is giving me invalid data type. So i though I will use todate function which is not giving me any error.  but in the table it is coming up as #Error.

I want to show dates which has country as France with "dd Mmm" format.

Can anybody please help me with this ?

Please see attached file.

I am using BO 4.0 SP06.

Thanks,

Tim