---
title: 02B - Updated Class Booking (Instant) - Mindbody → Zapier
description: This event triggers when a class booking status is updated in Mindbody. The payload provides information about the class session, client details, and updated sign-in status.
---

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# 02B - Updated Class Booking (Instant) - Mindbody → Zapier

## This event triggers when a class booking status is updated in Mindbody. The payload provides information about the class session, client details, and updated sign-in status.

#### **Payload Structure**

### **Root Object**

- **eventId** (string) – Identifies the event type (classRosterBookingStatus.updated).

- **eventInstanceOrigin** (string) – Source identifier for the event.

- **eventInstanceOriginationDateTime** (string, ISO 8601) – Timestamp when the update occurred.

- **eventSchemaVersion** (integer) – Version of the event schema.

- **messageId** (string) – Unique identifier for the message.

### **Class Booking Details**

- **classRosterBookingId** (integer) – Unique identifier for the class booking.

- **classId** (integer) – ID of the class.

- **classDateTime** (string, ISO 8601) – Scheduled date and time of the class.

- **signedInStatus** (string) – Client’s updated sign-in status (SignedIn, NotSignedIn, etc.).

### **Client Details**

- **clientId** (integer) – Internal Mindbody client ID.

- **clientUniqueId** (integer) – Unique identifier for the client.

- **clientFirstName** (string) – Client’s first name.

- **clientLastName** (string) – Client’s last name.

- **clientEmail** (string) – Client’s email address.

- **clientPhone** (string) – Client’s phone number.

### **Client Pass Information**

- **clientPassId** (string or null) – ID of the pass used for the booking.

### **Location Details**

- **siteId** (integer) – ID of the Mindbody site where the class is held.

- **locationId** (integer) – ID of the location where the class is held.

### **Instructor Details**

- **staffId** (integer) – ID of the instructor for the class.

### **Item Details (If Applicable)**

- **itemId** (string or null) – ID of the item related to the booking.

- **itemName** (string or null) – Name of the item related to the booking.

- **itemSiteId** (integer or null) – ID of the site associated with the item.

### **Summary**

This event ensures that **any changes in a client's class booking status**—such as sign-in updates—are **instantly reflected** in Zapier-powered workflows.

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