Edit running experiences

Correct issues with an experience after it has started.

Optimize allows you to make corrections to an experience, even after it's already started and running on the web. Editing and restarting an Optimize experience preserves its historical data and keeps visitors in their existing buckets.

Overview

There are many scenarios where you might want to edit an experience post launch, for example, to fix a simple error you didn't catch while creating a variant. Rather than locking an experience once you click start, Optimize empowers you to edit an experience on your own terms.

Changing a running experience can impact the quality and accuracy of the data, but it depends on the amount of changes and when you make them. For example, correcting a small punctuation error a few minutes after you start an experience won't impact your results as much as making substantial edits to a variant (or it's weighting) after it's been running for several days.

The best practice is to end and copy your experience. This provides the highest level of accuracy and preserves the integrity of the results.

Edit an experience

You can edit a running experience by clicking on its name, then click Edit at the top of the experience details page.

Edit running experience button.

After clicking Edit you will have two choices:

  • End experience and make a copy – Ends the current experience and creates a copy for you to edit and start. This is the recommended way to edit an experience as it preserves the integrity of the underlying experiment data.
  • Edit running experience – This option allows you to edit a running experience. We recommend only using this option to make minor changes immediately after starting your experience, for example fixing a typo you missed in preview mode. Editing a running variant (or its weighting) can impact the integrity of your results.

Experience editing options dialog screenshot.

End experience and make a copy

After selecting End experience and make a copy, you'll arrive on the experiment details page with the copied experience in a draft state. Here you'll be able edit the experience as needed. When you complete editing the experience, click Start at the top of the page.

Draft. Ready to start. Screenshot

Edit a running experience

You can also edit a running experience without copying it first, however this can impact the integrity of the experience data. This option should only be used to correct small errors made during the creation process immediately after starting the experience. If you need to make more than a minor edit, or if your experience has received significant traffic since starting, use End experience and make a copy instead.

After selecting Edit running experience you'll arrive on the experiment details page with the experience in a draft state. Here you'll be able edit the experience as needed. When finished editing, click Start at the top of the page.

Make your edits

After clicking Edit, you'll be able to make changes to your experience as needed. Learn more about the Optimize visual editor.

Editable elements

The following elements of an experience can be edited after an experience has started:

  • Name and description
  • Schedule
  • Variant content
  • Variant traffic weights
  • Traffic allocation
  • Targeting conditions (audience and page)*
  • Measurement for personalization toggle
  • Custom activation

*Custom variables currently in use by running, scheduled, and/or ended experiences cannot be changed.

Non-editable elements

The following elements cannot be edited after an experience has started:

  • Adding or removing variants
  • Experiment type
  • Google Analytics goal configuration (Universal Analytics only)
  • Optimize custom objectives (Universal Analytics only)
  • Linked Google Analytics views (Universal Analytics only)
  • Unlinking of a view (Universal Analytics only)
  • Adding or removing objectives
  • Activation events

Publish/discard changes

Once you have completed editing your experience you must publish the changes for them to take effect. This is done by clicking Publish in the notification banner that appears at the top of the experiment details page. You can also cancel and discard your changes by clicking Discard.

When you make edits to your experience that won't impact your results, such as changing its name or description, you'll see a blue notification:

Edit running experience unpublished banner

When you make edits that could impact your results, such as changing the variant treatment, you'll see a yellow notification:

Edit running experience banner

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