Use a custom formula of

=OR(AND(B2<TODAY(),D2=0),AND(B2=TODAY(),D2<0))

and uncheck the Ignore blank checkbox.

--
HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

"FARAZ QURESHI" wrote in message
...
I want to put a data entry validation check for allowing a Account Maturity
date in B2 less than Now() only if the account balance in D2 is 0,
otherwise
with a balance in the account a date only after Now() should be allowed.

Any suggestions & advices shall be highly obliged.

Thanx