# Visitors Everything about your Visitors ## Update a visitor - [PUT /visitors](https://developers.intercom.com/docs/references/rest-api/api.intercom.io/visitors/updatevisitor.md): Sending a PUT request to will result in an update of an existing Visitor. You can update a visitor by passing in the of the visitor in the Request body. You can update a visitor by passing in the of the visitor in the Request body. ## Retrieve a visitor with User ID - [GET /visitors](https://developers.intercom.com/docs/references/rest-api/api.intercom.io/visitors/retrievevisitorwithuserid.md): You can fetch the details of a single visitor. ## Convert a visitor - [POST /visitors/convert](https://developers.intercom.com/docs/references/rest-api/api.intercom.io/visitors/convertvisitor.md): You can merge a Visitor to a Contact of role type or . > 📘 What happens upon a visitor being converted? > > If the User exists, then the Visitor will be merged into it, the Visitor deleted and the User returned. If the User does not exist, the Visitor will be converted to a User, with the User identifiers replacing it's Visitor identifiers.