BPM To Set Current Date?

I've been trying to do what I thought would be a simple thing - have the Date01 field update with the current date when a new Call Log item is created in the Quote.
I have tried a BPM Post Processing Directive calling a Progress snippet like so

do:
assign ttCRMCALL.Date01 = TODAY.
end.

Which does nothing at all, no errors.

I have then tried setting the CRMCall.Date01 field of the added row to the Date(TODAY) value and that just tells me I need to use a specific date format, which is no good at all.

Can anyone help ?

B