Rejecting form submission if email address already exists within Marketo

[jonyang28]

Hi all, is there a way to reject a form submission live (at the time of submission) if the email address already exists in our database? Or is there a way to stop a record from updating on the submission if the record has pre-existing values within certain fields? Thank you!

[cookiemonstersa · Accepted solution]

Once a field is updated with whatever value you would like, you can then block any field updates to that field.

Navigate to Admin > Field Management > drag in the field in question > Field Actions > Block Field Updates > check all the checkboxes.

Not sure about the first part of your question. Whats the use case? 

[jonyang28]

So we have a program that allows for a single user to be attached to multiple "accounts" and we want to ensure that the accounts stay separated in Marketo for the sake of reporting/visibility/post-creation flows. So instead of the user overwriting the field for the account that the email is attached to via form submission, we are forcing a rule that they must use a different email address with each account (whether it's a completely new address or they're adding a "+1" or similar to the end of the username). So the hope was to have a rejection message pop-up if they try to submit an email that already exists in our database with an account attached.

Appreciate the idea in regards to blocking field updates!

[SanfordWhiteman]

It’s possible to create a lead lookup form, yes. It takes some fancy JS plus my existing SimpleDTO Pre-fill JS. If you stay tuned for a couple of weeks this is going on the official Products blog.

[jonyang28]

Looking forward to it!