# Welcome to FullContact Support

Search our Knowledge Base or Contact Support.

- [How to call API?](https://support.fullcontact.com/portal/en/kb/articles/how-to-call-api)
- [Acumen FAQs](https://support.fullcontact.com/portal/en/kb/articles/acumen-faqs)
- [Understanding Your Acumen Dashboard](https://support.fullcontact.com/portal/en/kb/articles/acumen-dashboard)
- [Acumen: Site Visitor Report](https://support.fullcontact.com/portal/en/kb/articles/acumen-site-visitor-report)
- [Acumen: Browsing Analytics Overview](https://support.fullcontact.com/portal/en/kb/articles/acumen-browsing-analytics-overview-9-8-2024-1)
- [How to add Additional Users to Your FullContact Account](https://support.fullcontact.com/portal/en/kb/articles/how-to-add-additional-users-to-your-fullcontact-account)
- [How to setup Multi Factor Authentication (MFA) on your FullContact account](https://support.fullcontact.com/portal/en/kb/articles/how-to-setup-multi-factor-authentication-mfa-on-your-fullcontact-account)
- [How to Opt Out of Marketing Emails](https://support.fullcontact.com/portal/en/kb/articles/disabling-marketing-email-subscription)
- [Issues Verifying Your API Account](https://support.fullcontact.com/portal/en/kb/articles/issues-verifying-your-api-account)
- [How to Update Credit Card Details](https://support.fullcontact.com/portal/en/kb/articles/how-to-update-credit-card)
- [How to Add, Remove, or Update the email address in Platform.](https://support.fullcontact.com/portal/en/kb/articles/how-to-add-update-email-in-dashboard)
- [Reaching FullContact Support](https://support.fullcontact.com/portal/en/kb/articles/contacting-api-support)
- [Querying Account Stats (V3 Developer API)](https://support.fullcontact.com/portal/en/kb/articles/querying-account-stats-v3-developer-api)
- [How to Cancel Your Account](https://support.fullcontact.com/portal/en/kb/articles/how-to-cancel-your-account)

## Contact Support

[SUBMIT A TICKET](https://support.fullcontact.com/portal/en/newticket) or email us at [support@fullcontact.com](mailto:support@fullcontact.com)