In the Field Validation Rule, put:

inlist(logically_deleted, "Y", "N")

>I simply used an 'or' in my iif... It wasn't working a minute ago, but it's working now, dammit.
>
>>I am trying to convert this Oracle Check Constraint into a VFP Field Validation Rule expression. The below code in Oraclespeak says to only allow the field to have a "Y" or "N" in it.
>>

>>   Logically_Deleted_YN VARCHAR2(1) NOT NULL
>>     CHECK (Logically_Deleted_YN IN ('Y', 'N'))
>>

>>
>>Thanks in advance for any help!