Data Layer and Page State

One of the most important ideas in Fluxyn is that not every piece of data has the same lifespan.

Some values belong only to the event happening right now. Others should stay available for the rest of the session. Fluxyn treats those cases differently on purpose.

The Global Data Component

Fluxyn can read pushed values from window.dataLayer.

For example:

window.dataLayer = window.dataLayer || [];
window.dataLayer.push({
  user_tier: "enterprise_premium",
  current_location: "US-NY"
});

When values are pushed without a meaningful event for a flow to react to, they can still affect the page state that later executions read from $.

That makes the data layer useful for long-lived context such as:

• user attributes
• campaign information
• page metadata
• CMP or consent state passed in from another system

The Separation of Context

Fluxyn keeps two ideas separate:

• $eventData is the payload for the current event
• $ is the accumulated page-level state

This is what makes flows predictable.

• Use $eventData for details that are unique to this run.
• Use $ for context that many later runs may need.

For example:

• the current purchase amount probably belongs in $eventData
• the visitor's country or subscription tier may belong in $

Updating State from Flows

You do not have to rely on raw dataLayer pushes to maintain state. You can also update it from within a flow using Set Properties.

That is the cleanest option when:

• you want to persist a value that was computed in Fluxyn
• you want later flows to reuse that value
• you want state ownership to stay in the flow builder instead of the host app

Good State Practices

• Store only what future executions genuinely need.
• Keep event-specific values in the current run unless they should survive.
• Normalize important fields early so later flows do not all solve the same problem differently.
• Be deliberate when overwriting state. If a value should be removed, clear it intentionally instead of assuming a later event will replace it.