Avoid creating accidental duplicates when using the Marketo REST API

In a recent client project, we discovered duplicate records being created by a third-party system integrated via Marketo‚Äôs REST API. These duplicate records had the same email address. While Marketo does de-duplicate leads (based on email addresses) from web forms and list imports, it does not necessarily de-dupe leads coming in via the REST API. It depends … Continue reading Avoid creating accidental duplicates when using the Marketo REST API