is there a way for marketo to create a validation error when someone registers with the same email address?

[Anonymous]

We have an event that we're using a Marketo landing page to capture RSVPs.  Problem is people are erasing the name and title but leaving the same email address.  Marketo is not picking these up as new registrations, so is there a way we can create a rule that would allow a validation error to occur if someone tries registering with the same email address? 

Thank you,
Vicky

[Anonymous]

There's a similar thread going right now... http://community.marketo.com/MarketoDiscussionDetail?id=90650000000PhtXAAS

[Anonymous]

Personally, I would disable the auto-fill on the form if it is causing the problem.  You can do the validation but it would be much more complicated - http://community.marketo.com/MarketoArticle?id=kA050000000L5paCAC

You could create an smart campaign that sends an alert to you and / or the registrant saying "There was a duplicate registration.  If you are trying to register multiple people please... (steps you choose)"