> For the complete documentation index, see [llms.txt](https://help.gleantap.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.gleantap.com/settings.md).

# Settings

- [Changing Timezone](https://help.gleantap.com/settings/changing-timezone.md): How to change your timezone so SMS and email campaigns arrive at your designated time
- [Add / Remove Sub Users](https://help.gleantap.com/settings/add-remove-sub-users.md): How to add or remove Sub User accounts for team members that perform different roles in your business
- [Campaign Approval](https://help.gleantap.com/settings/add-remove-sub-users/campaign-approval.md): How to enforce campaign approval for sub-users in your account
- [API](https://help.gleantap.com/settings/api.md): Some integrations may require an API Key and API Secret, to find yours follow the steps below.
- [Integrations](https://help.gleantap.com/settings/integrations.md): Follow these steps to sync your data between your platforms and Gleantap.