Parameters

Parameters overview

Parameters let you filter and interact with data across dashboards, analyses, and definitions. When you apply a parameter, the filter works at all levels of the underlying analyses — including conditions inside aggregates nested within expressions.

Parameters are based on dynamic attributes. Instead of requiring an exact static value in a condition, a parameter acts as a placeholder. Anyone viewing the analysis in read or preview mode can then supply the static value. To see which analyses support parameters, see Analyses.

How to provide a static value

There are two ways to provide a static value for a parameter:

Manually: Enter the value on the Preview screen for a specific report. Use this method for ad hoc analysis.
Automatically: Bloomreach populates values such as campaign_id, banner_id, experiment_id, or survey_id when the dashboard is selected in the Evaluate tab of a campaign. This applies only when the dashboard is viewed from a campaign's Evaluate tab.

Four-step diagram for setting up a parameter across an analysis and dashboard — The four steps of setting up and reusing a parameter across an analysis and dashboard.

Set up parameters

Open your report in Edit mode.

Report open in Edit mode with a static value entered in a filter field — A report open in Edit mode with a static value in a filter field.

Locate any field that currently uses a static value — for example, example.com.
Replace the static value with a dynamic parameter using the format [[parameter_name]]. For example, [[email_domain]].
Once you close the brackets, the input field turns blue, confirming that the parameter was accepted.

Blue input field confirming a dynamic parameter has been accepted — A blue input field confirming that a dynamic parameter has been accepted.

A new parameter control appears at the bottom of your analysis. Use it to enter a static value and verify the analysis calculates correctly.
Test different values and confirm the report displays correctly using the Preview or Refresh button.

Parameter control at the bottom of an analysis showing a test value — The parameter control at the bottom of an analysis with a test value.

If your analysis is part of another analysis—for example, a metric used in a report or a report used in a dashboard—the parameters also appear in read mode for the top-level analysis. This lets users specify values and interact with the displayed data.

You can use the same parameter name across multiple event attributes. Define the logic in brackets—for example, [[example]]. When you use the same parameter name in different events, the same value applies to all of them.

When multiple parameters share the same name, entering a value once applies it across the entire dashboard.

Use parameters

Once you've set up your parameters, you can use them in several ways:

Filter data by a specific value in an aggregate condition.
Specify campaign_id, campaign_name, banner_id, and similar values across multiple funnel steps or in a running aggregate within an expression.
Change the attribution window of a report that uses multiple underlying analyses.

Parameter limitations

You can only specify one value per parameter control.
The API doesn't support analyses that use dynamic attributes.
Jinja can't be used in the same places as parameters, such as in filter conditions.
Analyses that use parameters can't be downloaded as CSV. To export the data, remove parameters and replace them with static filter values before downloading.
RegEx isn't supported inside parameters.
Analyses that use parameters can't be accessed through a Jinja reference.