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An A/B test finishes in one of two ways: you end it yourself, or it reaches the end date you configured. Either way, the last step is the same — choose the winning variant.

End an Experiment Manually

1

Open the configuration screen

Open the experiment and click Configure Experiment. The End Experiment button sits in the top-right controls.
2

Review the results

The Select Winning Variant dialog shows each group with its average value, total, and sessions.
3

Choose a winner

The variant with the highest average value is selected by default. Choose a different one if you want, or select No winning variant to close the test without declaring one.
4

Confirm

Click End Experiment. The status changes to Completed.

When an Experiment Ends Automatically

An experiment ends on its own when the end date arrives. Experro emails the recipients configured on the Duration step. The experiment then appears as Completed in the list with a caution icon beside its name, showing that it still needs a decision. Open it and you will see a banner:
The experiment has ended. Click Conclude Experiment to choose the winning variant and conclude the experiment.
Click Conclude Experiment to open the same Select Winning Variant dialog and finish the process.

After an Experiment Ends

  • Configuration becomes read-only.
  • Pause and End Experiment are removed. Clone and Delete remain.
  • Visitors previously enrolled see the control experience and become eligible for other experiments on their next visit.
Personalization experiments cannot be ended manually. When they reach their end condition they return to Draft instead of completing.
Ending an experiment is final. To keep collecting data, pause it instead.

What’s Next