Dimensions and metrics

[GA4] Archive custom dimensions and metrics

Create more custom dimensions and metrics by archiving ones you don't use

If you reach the limit on the number of custom dimensions or metrics you can create, you can free up space to create more custom dimensions or metrics by archiving the ones you don't use. You can always reuse the name of the dimension or metric after archiving it.

Archiving a custom dimension or metric affects any audiences, explorations, segments, or custom reports that are based on or use the now archived custom dimension or metric.

Warning: Archiving dimensions or metrics can't be undone and the corresponding dimensions or metrics can't be restored.

Instructions

  1. In Admin, under Data display, click Custom definitions.
    Note: The previous link opens to the last Analytics property you accessed. You can change the property using the property selector. You must be an Editor or above at the property level to archive custom dimensions and metrics.
  2. In the row for the custom dimension or metric, click More > Archive.
  3. Review the list of entities in Analytics that use the custom dimension or metric, such as audiences and explorations.
  4. Click Archive.

Audiences

When you archive a custom dimension or metric that's used in the definition of an audience, that audience definition becomes invalid and the audience doesn't accumulate any new users.

Historical data for the audience is preserved, but no new data is generated once the audience becomes invalid.

You can't export invalid audiences to other products (e.g., Google Ads, Google Optimize).

If you've previously exported the audience to other products, the audience will continue to function as expected. However, since the audience is not accumulating new users, the user count will drop as the membership duration expires for existing users until the audience contains no users.

If an audience includes an archived custom dimension or metric, you see a warning icon next to the audience name in the audience list:

When you edit the audience definition, you see an additional message that the audience includes an archived custom dimension or metric:

You can't edit audience conditions. To create a version of the audience without the archived custom dimension or metric, you need to create an entirely new audience.

Explorations and segments

Warning icons similar to the ones for archived audiences appear in Explorations for explorations or segments that include archived custom dimensions or metrics. In addition, the dimension and metric lists in Explorations identify archived custom definitions with a warning icon.

As with audiences, explorations and segments with archived custom definitions are invalid and will not load.

If you remove the archived custom definition, then the exploration or segment will load.

While archived custom definitions appear in the dimension and metric lists (with a warning), you can't add them to explorations or segments.

Reports

When you archive a custom dimension or metric, any reports that use the custom dimension or metric become invalid until you remove the archived custom dimension or metric from the reports. Look for the following warning in the Data quality icon at the top of the report:

A screenshot of a warning with the message, "The report contains one or more archived custom dimensions or metrics"

To remove an archived custom dimension or metric from a report, an editor or administrator must follow these steps:

  1. Click Customize report on the top right of the report.
  2. In the Report data section, open the dimension or metric picker.
  3. Remove the archived custom dimension or metric from the report.

Note: Only editors and administrators can customize reports. Non-editor or admin users cannot edit the report and must contact an editor or administrator to archive the dimension or metric. Learn more about customizing reports

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