> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: wix-crm-frontend ## Namespace: contacts ## Article: Introduction ## Article Link: https://dev.wix.com/docs/velo/apis/wix-crm-frontend/contacts/introduction.md ## Article Content: # Introduction When a new visitor first shares their contact information with a site, they're added to the site's [contact list](https://www.wix.com/my-account/site-selector/?buttonText=Select%20Site&title=Select%20a%20Site&autoSelectOnSingleSite=true&actionUrl=https:%2F%2Fwww.wix.com%2Fdashboard%2F%7B%7BmetaSiteId%7D%7D%2Fcontacts). Once that happens, their details are available through the Contacts API. Here are some examples of how a visitor could be converted to a contact: A site visitor becomes a contact when: - A site visitor: - Submits their contact details to a form, such as event registrations, customer support inquiries, or billing address submissions. - Registers as a member of a site. - A Wix user: - [Imports a contact](https://support.wix.com/en/article/wix-contacts-importing-contacts-by-uploading-a-csv-file). - [Adds a contact manually](https://support.wix.com/en/article/wix-contacts-manually-adding-a-contact). - You: - Create a contact with the Contacts API. Learn more about how Wix users can [manage a site's contact list](https://support.wix.com/en/article/about-your-contact-list).