---
title: "Scheduling Without An Email: What You Need To Know"
description: "While OnceHub allows you to set email collection as not required or remove the email question entirely, this is generally not recommended."
url: "https://help.staticso2.com/contact-management/scheduling-without-an-email-what-you-need-to-know"
---

While OnceHub allows you to set email collection as **not required** or remove the email question entirely, **this is generally not recommended.** This configuration is specifically designed for **Phone Booking** or high-volume **D2C retail** use cases where the friction of providing an email address may cause high drop-off rates.

Before setting email collection to **not mandatory**, it is essential to understand the consequences this has on your scheduling workflow and guest notifications.

***

## Consequences of Not Collecting an Email

[Section titled “Consequences of Not Collecting an Email”](#consequences-of-not-collecting-an-email)

When an email address is not collected, the standard automated booking process is significantly affected, resulting in the following impacts:

* **Loss of Automated Calendar Invites:** Without an associated email address, OnceHub cannot send calendar invitations (.ics files). Guests will not receive a calendar event and must manually add the meeting to their digital calendar, significantly increasing the risk of no-shows.

* **No Email Notifications or Reminders:** All email-based confirmations, reminders, and follow-ups will not be delivered to your guest.

* **Dependency on SMS for Notifications:** To maintain a reliable communication bridge when email collection is not mandatory, ensure that your SMS notifications are fully optimized to handle all guest interactions.This requires:

  * Setting the **Phone** field as mandatory on your **Booking Form**.
  * Maintaining a [**sufficient SMS credit balance**](https://help.staticso2.com/billing/sms-credits-in-oncehub) to prevent delivery failure of automated messages.
  * Configuring SMS notifications to include all necessary meeting details.

Note

**NOTE for iPhone Users:** iOS devices can often detect meeting dates and times from SMS texts, allowing guests to add events directly to their calendar from the text message.