did you try:

requires=IS_NULL_OR(IS_DATE())

?

On Sep 7, 1:50 pm, jayvandal <jayvan...@gmail.com> wrote:
> Hi,
>  another question
> I want to be able to enter old dates like"1776-07-04"  but I may not
> know a date at the time of record creation so I may leave the field
> blank.
> I tried to use Format but I get errors no Format in database creation.
> I changed from using the date verb to just plain length of field but
> it allows any value
> Any help  please
> Jim
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