# Settings & billing

> This is the Settings & billing section of the Customer.io documentation. For the full documentation index, see [llms.txt](https://docs.customer.io/llms.txt).

- [Account verification](https://docs.customer.io/accounts/account-verification.md): **Before you can send emails** to your audience through Customer.io, your account must be verified. We automatically verify accounts when you sign up to filter out bad actors that might try to abuse our services.
- [Audit logs](https://docs.customer.io/accounts/audit-logs.md): Audit logs help you track changes made to your account, workspaces, messages, and other assets so you can keep your account secure and troubleshoot issues.
- [AI credits](https://docs.customer.io/accounts/billing/ai-credits.md): AI credits are the currency for LLM actions in automations. Learn how credits work, about our pricing model, and how to manage your AI credit usage.
- [Canceling your account](https://docs.customer.io/accounts/billing/canceling.md): We really hate to see you go, but we understand sometimes things change. But, before you leave, we
- [How we bill](https://docs.customer.io/accounts/billing/how-we-bill.md): Your subscription determines how we bill for profiles and the integrations available to you. You can find the details of your subscription on your [Plans & Billing page](https://fly.customer.io/settings/billing/your-plan).
- [Payment problems](https://docs.customer.io/accounts/billing/payment-problems.md): We understand that unexpected things happen and our billing team is here to help. Send us an email at [billing@customer.io](mailto:billing@customer.io). To help you plan, we
- [Plan features](https://docs.customer.io/accounts/billing/plan-features.md): Customer.io offers different billing plans. These plans determine how much information you can store before incurring overages, and, in some cases, what features you can use.
- [Reducing billing overages](https://docs.customer.io/accounts/billing/reduce-billing-overages.md): Every month, we count the number of profiles and objects in your account for billing purposes. If you exceed your plan
- [Billing for SMS messages](https://docs.customer.io/accounts/billing/sms-billing.md): We partner with Twilio to send SMS messages. If you
- [Billing for WhatsApp messages](https://docs.customer.io/accounts/billing/whatsapp-billing.md): **Customer.io does not charge for WhatsApp messages**, but Meta and Twilio—the partners who handle WhatsApp messaging—do. Learn about the costs you can expect when sending WhatsApp messages.
- [AI settings](https://docs.customer.io/accounts/security/ai-settings.md): You can manage account-level settings for Customer.io
- [Customer.io security qualifications](https://docs.customer.io/accounts/security/certifications.md): We
- [Customer.io, GDPR, and you!](https://docs.customer.io/accounts/security/gdpr-faq.md): [GDPR (General Data Protection Regulation)](https://gdpr-info.eu/) is a regulation to strengthen and unify data protection for EU citizens. In a nutshell, its goal is to protect individuals
- [Allowlist our IP addresses](https://docs.customer.io/accounts/security/ip-addresses.md): If you use a firewall or an allowlist, you may need to allow traffic from our IP addresses to support traffic from Customer.io based on the features you use.
- [Session cookies and expiration](https://docs.customer.io/accounts/security/login-session.md): We manage your session and the sessions of your team members in the Customer.io user interface with a secure HTTP-only cookie. As an administrator, you can limit the duration of sessions as necessary to fit your own security policies.
- [Mobile and App Store privacy](https://docs.customer.io/accounts/security/mobile-privacy.md): We
- [Security](https://docs.customer.io/accounts/security/overview.md): The information below discusses the policies and procedures Customer.io has in place when dealing with Customer data.
- [Privacy](https://docs.customer.io/accounts/security/privacy.md): We all deserve to know what
- [Respecting your users' privacy](https://docs.customer.io/accounts/security/user-privacy.md): You want to maintain a healthy relationship with your customers, and that means both respecting their privacy and responsibly using the data you collect.
- [Enable experimental features](https://docs.customer.io/accounts/settings/beta-experimental-features.md): The *Experimental Features* setting lets you try out features we
- [Customize your UI](https://docs.customer.io/accounts/settings/customize-ui.md): You can hide items from your sidebar navigation and choose a color theme that suits you.
- [Account regions (US and EU)](https://docs.customer.io/accounts/settings/data-centers.md): When you create an account with Customer.io, you select your region, which determines where we store your data: in the United States (US) or European Union (EU). Our EU data center is based in Belgium.
- [Edit account information](https://docs.customer.io/accounts/settings/editing-account-information.md): You can edit your account information, including your account
- [Manage legacy team members](https://docs.customer.io/accounts/settings/legacy-permissions.md): The old way of hiding all attributes.
- [Single sign-on (SSO)](https://docs.customer.io/accounts/settings/login-with-sso.md): Organizations that need enhanced security requirements can configure their Customer.io account to use Single Sign-on (SSO).
- [Access multiple accounts](https://docs.customer.io/accounts/settings/manage-accounts.md): If you have multiple Customer.io accounts, you can switch between them without logging out and back in again. If you
- [Manage your API credentials](https://docs.customer.io/accounts/settings/managing-credentials.md): 50
- [Security best practices](https://docs.customer.io/accounts/settings/security-best-practices.md): From our side, we’re working hard to keep [your data safe](/accounts/security/overview/), but there are also a few measures you, as an Account Admin, can take to make your Customer.io account security bulletproof.
- [Assign standard roles](https://docs.customer.io/accounts/settings/team/assign-standard-roles.md): Account Admins grant team members access to workspaces by assigning them workspace-level roles. A standard role comes with a defined set of permissions. To create roles with custom permission sets, check out [Custom roles](/accounts/settings/team/create-roles/).
- [Create & assign custom roles](https://docs.customer.io/accounts/settings/team/create-roles.md): Account Admins can grant team members access to workspaces by assigning them workspace-level roles. If you
- [How to add team members to your account](https://docs.customer.io/accounts/settings/team/intro-account-access.md): Account Admins can add team members and assign roles to grant the right level of access. If you
- [Two-factor authentication](https://docs.customer.io/accounts/settings/two-factor-auth.md): Two-Factor Authentication (2FA) is an additional layer of security on your Customer.io account. By default, we require you verify your login attempt through a magic link sent to your email. You can also enable 2FA through an authentication app.
- [Create a HAR file for help troubleshooting](https://docs.customer.io/accounts/troubleshooting/create-a-har-file-for-help-troubleshooting.md): Sometimes troubleshooting issues requires additional information about the network requests your browser generates when the issue occurs. When this is the case, our support team may ask you to record a HAR file (a log of network requests) while you are experiencing the issue so that we can dig deeper into the situation on our end and ultimately find a solution to whatever is going on.
- [Troubleshooting login and browser issues](https://docs.customer.io/accounts/troubleshooting/login-trouble.md): If you have trouble logging into Customer.io, we have a few tips to help you get back up and running.
- [Tasks: workspace performance](https://docs.customer.io/accounts/workspace-tasks.md): Use the Tasks page to monitor background tasks that might take some time to complete, like segment creation and imports. This lists processes for your workspace, not your account as a whole.
- [Case sensitivity and your data](https://docs.customer.io/accounts/workspaces/case-sensitivity.md): When you send data to Customer.io, you should format it consistently so it
- [Understand timezone conversion](https://docs.customer.io/accounts/workspaces/datetime-displays.md): Not all timestamps in your workspace display in the same timezone. Depending on the type of data you
- [Workspaces in Customer.io](https://docs.customer.io/accounts/workspaces/overview.md): Workspaces are a way of working with multiple products, sites or apps from a single Customer.io account. Everyone starts with one (its name is the same as your account name), and you can add or remove them as needed.
- [Search your workspace](https://docs.customer.io/accounts/workspaces/search.md): Our universal search feature can help you find automations, segments, templates, and other items in your workspace.