I need be able to identify when an another lead has been created that has an identical field data as a previous lead sitting in the databse ie:
User 1 fills in a marketo form, entering "ABC123" into a customer number field.
User 2 fills in a marketo form, entering "ABC123" into the same customer number field.
I want to be able to identify when User 2 submits the same form and has the same data in that field. Ideally being able to send an internal alert once this occurs.
Thanks in advance,