Hi Everyone, 
I'm trying to create a rule that requires that shipping/mailing postal codes must match for all contacts with accounts. I'm getting syntax errors that don't make sense (like 'found extra AND' or 'found extra NOT'). Can anyone tell me what I'm doing wrong here? 

AND (
NOT(ISBLANK(AccountNumber))
NOT(Account.ShippingPostalCode = MailingPostalCode)
)

Hi all,

Some badges want you to set up a specific DE for their use (especially security ones). Others seem to accept the standard TH Playground. What is the difference between a DE and TH Playground? I see some challenges that call for some things that should already be in the org (i.e. account, contact, user, oppoutunity) but they are not in a new TH Playground when I start a new one up.

Also, are there core features and license differences? Thanks!