EntryChoosing an Entry Source, and What Each One Commits You To
The entry source is the most consequential decision in a journey and the one most often made by habit. It determines how often someone can enter, how quickly they enter after the triggering event, and what has to be true elsewhere in the platform for the journey to work at all.
Journey Builder entry sources compared| Entry source | Admits a contact when | Timing | What it commits you to |
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| Data extension | A record appears in, or is refreshed into, a nominated data extension. | On the journey's configured schedule, so as fresh as the data step that fed it. | An Automation Studio dependency. The journey is only as timely as the query behind it, which is where most "the journey is slow" complaints actually originate. |
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| Contact event / API entry | An external system fires an event through the API. | Near real time. | An integration with its own failure handling. When the calling system is down, nobody enters and nothing tells you — unless you built that alert. |
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| Salesforce data event | A CRM record is created or updated to match criteria. | As fast as the connection between CRM and Marketing Cloud allows. | A dependency on Marketing Cloud Connect and its poll cadence. A retention journey reacting to a cancellation needs a different cadence from a newsletter. |
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| Audience / segment | A contact is a member of a defined audience at evaluation time. | At evaluation. | Discipline about what the audience means. Audiences that drift silently admit people nobody intended. |
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| Event / interaction | A tracked behavior occurs — an abandoned basket, a page view, an app action. | Near real time, subject to the collecting system. | Behavioral data arriving reliably. This is the entry source with the highest value and the most upstream dependencies. |
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Capabilities verified against Salesforce documentation Last reviewed 23 September 2026