Assigning users to variations with Traffic repartitions

Traffic repartition enables you to manage the distribution of your campaigns within 10 different buckets, each representing 10% of your total traffic. By assigning campaigns to specific buckets, you can control which users see which campaigns, avoid overlap, and ensure mutually exclusive user journeys. This helps you maintain reliable and statistically correct reports, as well as a clear and manageable user experience.

Why Use Traffic repartition?

Key Benefits

• Split the traffic between teams: split the number of buckets into your teams in order to not overlap your own experimentation roadmap

• Prevent Campaign Overlap: Ensure users are not exposed to conflicting or multiple campaigns at once, avoiding interaction effects that could invalidate your results.

• Statistical Integrity: Avoid data contamination and get clearer, more actionable results by preventing data bias.

• Orchestrate User Journeys: Define which combinations of campaigns users can see, enabling advanced experimentation strategies.

• Mutual Exclusion: Especially useful when you have significant traffic and many campaigns running at the same time.

When to use Traffic Repartition

Traffic repartition is available for all types of campaigns: A/B Test, Personalization, Feature Toggle, Multi-Experimentation Personalization, and Progressive Rollout.

Ideal scenarios include:

• Running multiple campaigns simultaneously on the same pages

• Testing different features that might conflict with each other

• Managing high-traffic sites with numerous concurrent campaigns

Prerequisites

• You must have FE&R access (available to all roles including Guest)

• If you don't see the feature, contact your AB Tasty representative

How Traffic repartition works

Buckets

• 10 buckets available

• Traffic Distribution: Each bucket represents 10% of the overall traffic; traffic is evenly distributed between all buckets.

Campaign assignment

• You can place several campaigns within the same bucket.

• A visitor belonging to a bucket will only see the campaigns attributed to that same bucket. They won't be able to see campaigns attributed to other buckets, even if they meet the targeting criteria.

Campaigns not assigned to any bucket

• Important: A campaign not assigned to any bucket will be shown to every visitor (i.e., 100% of traffic), as long as it is live and meets its targeting criteria.

Setting up traffic repartition

1

Access traffic repartition

1. Navigate to the Feature Experimentation section

2. Click on Traffic repartition in the left navigation menu

2

Bucket attribution

Choose buckets for your campaign

This will assign your campaign to the selected bucket(s). Campaign will then only be visible by visitors attributed to the bucket(s) selected.

3

Navigate to the traffic repartition page

The Traffic repartition screen displays two main sections:

Top Section - "Live campaigns without buckets":

• Displays all live campaigns that are not currently assigned to any bucket.

• Columns: campaign name, environment, and type.

• These campaigns are shown to every visitor (100% traffic) until assigned to at least one bucket.

• Paginated table that updates in real time when campaigns are assigned.

Main Section - Buckets:

• Displays all 10 buckets (Bucket 1 through Bucket 10).

• Each bucket shows: bucket name, number of campaigns, and "10% of global traffic".

• Click on a bucket to expand and see the list of campaigns inside with details: name, environment, type, status, and bucket tags.

4

Assign campaigns to buckets

1. To place a campaign in a bucket, click it, select the desired buckets, and save your configuration.

2. You can assign a single campaign to multiple buckets to increase its traffic share (e.g., 2 buckets = 20% of total traffic).

3. A success message will confirm the assignment.

Bulk Assignment Options:

• Select multiple buckets: Use the checkbox on bucket headers, then use the sticky footer to add campaigns to all selected buckets at once.

• Select multiple campaigns: Use the checkbox on campaign rows within buckets, then use the sticky footer to add them to additional buckets or remove them.

5

Organize and manage buckets

• Rename buckets: Click on the bucket name to edit it for easier organization.

• Place multiple campaigns in the same bucket if you want users to potentially see them together.

• Keep campaigns that should never overlap in separate buckets.

• Remove campaigns: Select one or more campaigns, click "Remove from bucket" in the sticky footer, then confirm. If a campaign is removed from all buckets and is still Live, it returns to the "Live campaigns without buckets" section.

You can effectively manage multiple concurrent experiments, ensure statistical integrity, and scale your experimentation program with confidence.