Guide

1. On Unbounce's main workspace, head over to the left-side panel and click 'Settings'.

2. Choose 'Script Manager' from the list of options.

3. After that, click 'Add a Script'.

4. Tap the drop-down menu to proceed.

5. Subsequently, pick 'Google Tag Manager' from the choices.

6. Enter your GTM container ID into the provided input field.

7. Once done, click 'Add Script Details'.

8. Find the domain you want to use, then tick the checkbox beside it.

9. Once done, click 'Save and Publish Script' to continue.

10. After completing these steps, the Google Tag Manager script will be added to the Unbounce pages under the selected domain.