> For the complete documentation index, see [llms.txt](https://docs.acronym.com/analytics/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acronym.com/analytics/adobe-launch/gtag/migration-guides/google-gtag.md).

# Google Gtag

The Adobe-built Google Gtag extension injects the Google Global Site Tag (gtag) library on the page. Similarly, the Acronym version will inject the library on the page once a relevant rule action has been triggered.

## Extension Configuration

![The configuration screen for the Adobe-built Google gtag extension.](/files/-MMpovEruB4oUbew5w4N)

To migrate the extension configuration, simply take the account IDs (separated by commas) from the Adobe extension and [add each account ID](/analytics/adobe-launch/gtag/configuration.md) to the Acronym extension.

![Adding a new account within the Acronym-built gtag extension.](/files/-MMpq6q3oACjsbH_bTq6)

If you have set the custom data layer option in the Adobe extension, you can copy this value to the advanced settings field: [Data Layer Name](/analytics/adobe-launch/gtag/configuration.md#data-layer-name).

## Rule Actions

The Adobe-built extension does not have any rule actions to migrate.


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