# A/B Test Campaign

In a server-side context, experiments are powered by **feature flags**. Variations are defined by different flag values and evaluated through the SDK or Decision API.

### Before you start

Before creating an A/B test campaign, make sure you have:

* The required permissions to create and manage campaigns
* A flag configured
* Relevant context keys defined for targeting
* The FE\&R SDK properly installed ([FE\&R SDK installation](https://app.gitbook.com/s/BWu23t7Qv6wLLh6Hl5b4/sdks/js-sdk/archived-versions/archived-js-v40x/archived-js-v40x-installation))

{% hint style="warning" %}
**Permissions required**

Creating or editing a campaign requires appropriate permissions on the folder and environment.

Only users with sufficient rights (User or Admin role on the folder) can create or modify campaigns.
{% endhint %}

### Campaign Creation Flow

Creating a server-side A/B test campaign follows a structured 7-step flow:

{% stepper %}
{% step %}

### Main Informations

Define the campaign type, environment, and core configuration.
{% endstep %}

{% step %}

### Variations

Configure the different variations using feature flags.
{% endstep %}

{% step %}

### Goals

Select the KPIs used to evaluate performance.
{% endstep %}

{% step %}

### Targeting

Define which users are eligible for the campaign.
{% endstep %}

{% step %}

### Traffic Allocation

Decide how traffic is distributed across variations.
{% endstep %}

{% step %}

### Advanced Options

Configure additional settings such as risk management options.
{% endstep %}

{% step %}

### Overview

Review the full configuration before launching the campaign.
{% endstep %}
{% endstepper %}

***

### Activation

Once your campaign is fully configured and validated, you can activate it from the campaign header or from the dashboard.

Changing the campaign status from **Draft** to **Live** will start the experiment and begin data collection.


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