> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://lobbyfix.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Visitor Contact – What if I don’t have their WhatsApp or Email?

When creating an **Invite**, you can add a visitor’s contact information (email or WhatsApp) so they receive the invitation with their QR code directly, saving time.

### What if I don’t have the visitor’s WhatsApp or email?

If you don’t have the visitor’s contact details, there are two options to generate their QR code:
1. **Enable the option to "Create a pre-registration link"** 
2. **Generate the QR code using your own email address and share it with the visitor through another channel**

### 1. Create a pre-registration link

When you enable this option, a link is generated after completing the Invite. You can send this link to your visitors. Through the link, they can enter their own email and/or WhatsApp to generate their personal QR code for the visit.

| You can always check the Invite created to see which visitors have signed in using the link.

![](https://storage.crisp.chat/users/helpdesk/website/-/1/a/1/5/1a157f5daa9e7500/image_czt1a9.png)
### 2. Use your own email address

If you don’t have the visitor’s contact, you can use your own email address by adding a **plus sign (+)** and the visitor’s name (without spaces) before the **@**.

**Example:**
If your email is: `support@lobbyfix.com`
| Visitor Name | Email Address Example |
| ---- |
| Julia Park | support+juliapark@lobbyfix.com |
| Andy Martinez | support+andymartinez@lobbyfix.com |

This way, visitors can be registered under the Invite, and invitations will be sent to your own email.