Validation

[Guest]

I want to validate field A: First has to be checked if field B is filled. If so field A must be filled.

 

[Sue Mosher [MVP-Outlook]]

Try:

([FieldA] <> "") OR ([FieldB] = "")

This validation expression will return True if FieldB is blank (in which
case you don't care what FieldA is) or if FieldA is filled.

--
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers

I want to validate field A: First has to be checked if field B is filled.

If so field A must be filled.