The Difference Between a Klaviyo Trigger Filter and a Flow Filter

The Klaviyo Trigger Filter

The Klaviyo Trigger Filter plays a crucial role in the automation process. When an event occurs — like a user signing up for a newsletter or purchasing a product — the Trigger Filter springs into action. It assesses whether the event aligns with the preset conditions in your automation workflow. If it does, the subscriber is entered into the specific flow.

Here’s a common example: If you’ve set a trigger to detect when customers complete a purchase, once that action is taken, the customer will be entered into the post-purchase flow. This automation might involve sending a thank you email, a request for product review, or an upselling opportunity.

The Role of Flow Filters in Klaviyo

On the other hand, Flow Filters operate within an existing flow. They work by checking subscribers prior to each individual reaching a new stage in your flow. The most common example can be found in the abandon cart flow. Adding a flow filter at the top such as, ‘Has started checkout zero times since starting this flow’, will mean that before each email, the flow filter will be applied to check if they have taken that action since starting the flow.

Key Differences Between Klaviyo Trigger Filter and Flow Filter

While both tools are vital for effective email marketing automation, their functionalities vary significantly. The main differences are based on their placement in the automation workflow and how often each thing is applied.

  1. Placement in the automation workflow: The Trigger Filter is the entry point into an automation workflow. It activates the initial flow based on a specific event and is only applied once. Conversely, the Flow Filter operates within the flow itself, checks before each action.


In conclusion, while Klaviyo Trigger Filters and Flow Filters might appear similar, they play distinct roles in the automation process.