Data Reference: Properties and Events

Everything CRMConnect writes into Klaviyo is listed on this page. Properties live on the client's Klaviyo profile and always reflect the current state; events are the timestamped history and never change once written. Mindbody-sourced items are prefixed MB so they are easy to find in segment builders and template editors.

How updates reach Klaviyo

Every property and event on this page updates on one of three rhythms:

Instant. Mindbody notifies the integration the moment something changes, and the update lands on the Klaviyo profile within seconds to about a minute. Client details, appointments, classes, sales, memberships, and contracts all move at this speed.
Every 15 minutes. A safety-net sweep reconciles appointment data, so even if a notification is ever missed, the profile catches up within a quarter hour.
Nightly. Visit-derived properties (last visit date, last location visited, the accumulating list of locations visited) are computed from yesterday's check-ins and refresh once per night. A daily sales sweep also reconciles purchase data; because every event carries a unique identifier, this pass can never create duplicates.

For the full timing story, see Sync timing and reliability.

Profile properties

Klaviyo native fields

These are written to Klaviyo's own standard fields, so everything in Klaviyo that reads them (previews, personalization tags, birthday flows) just works.

Property	Type	What it holds	Updates	Use it for
Email	Text	The profile identifier; clients are matched between systems by email address	Instant	The key that ties Mindbody and Klaviyo together
First Name	Text	The client's first name from Mindbody	Instant	Personalization ("Hi {{ first_name }}")
Last Name	Text	The client's last name from Mindbody	Instant	Personalization and front-desk context
Phone Number	Text (E.164)	The client's phone number, formatted for SMS	Instant	SMS sending, once the client has consented in Klaviyo
Birthday	Date	The client's Mindbody birth date, written to Klaviyo's standard Birthday field	Instant	Klaviyo's built-in birthday flows

Contact basics

Property	Type	What it holds	Updates	Use it for
MB Client ID	Text	The client's Mindbody identifier	Instant	Cross-referencing a profile with Mindbody
MB Unique client ID	Text	Mindbody's globally unique client identifier	Instant	Reliable matching across sites
MB Gender	Text	As recorded in Mindbody	Instant	Audience refinement where relevant
MB Date of birth	Date	Birth date (also mirrored to Klaviyo's Birthday field)	Instant	Age-based segments
MB Profile creation date	Date	When the client was created in Mindbody	Instant	New-client welcome audiences, cohort reporting
MB Status	Text	The client's Mindbody status (Member, Non-Member, and any custom statuses you use)	Instant	Member vs. non-member messaging
MB Inactive	Boolean	Whether the client is marked inactive in Mindbody	Instant	Excluding inactive clients from campaigns
MB Liability released	Boolean	Whether the liability waiver is signed	Instant	The Waiver Not Signed segment, compliance chasing
MB Account balance	Number	The client's current account balance	Instant	Balance-due reminders

Communication preference mirrors

Mindbody's six communication preferences are mirrored onto the profile for reference and segmentation. They never change anyone's Klaviyo subscription status; Klaviyo consent stays entirely under Klaviyo's control. See Consent, subscriptions, and privacy.

Property	Type	What it holds	Updates	Use it for
MB Send account emails	Boolean	Mindbody preference for account emails	Instant	Reference when auditing preferences
MB Send promotional emails	Boolean	Mindbody preference for promotional emails	Instant	The Promo Opt-In segment
MB Send schedule emails	Boolean	Mindbody preference for schedule emails	Instant	Reference for schedule-related sends
MB Send account texts	Boolean	Mindbody preference for account texts	Instant	Reference when planning SMS
MB Send promotional texts	Boolean	Mindbody preference for promotional texts	Instant	Reference when planning SMS
MB Send schedule texts	Boolean	Mindbody preference for schedule texts	Instant	Reference for schedule-related SMS

Locations

Location properties carry your studios' actual names (from the managed location naming table), not internal numbers. See Locations and multi-site brands.

Property	Type	What it holds	Updates	Use it for
MB Home location	Text	The client's home studio, by name	Instant	Per-location campaigns and sender identity
MB Locations visited	List	Every studio the client has ever checked in at, as an accumulating trail	Nightly	Cross-location behavior, "has visited X" audiences
MB Last location visited	Text	The studio of the most recent visit	Nightly	Location-specific win-back messaging
MB Last visit date	Date	When that most recent visit happened	Nightly	Lapsed segments (no visit in 30, 60, 90 days)
MB Last purchase location	Text	The studio (or online store) of the most recent purchase	Instant on sale	Attributing purchase behavior to a location

Upcoming appointment

The entire block recomputes instantly on every booking change: the client books, cancels, or reschedules anywhere in your business, and the profile reflects the new next appointment within about a minute. A 15-minute sweep backstops it.

Property	Type	What it holds	Updates	Use it for
MB Upcoming appt datetime	Date	When the next appointment is	Instant	Sorting, countdown logic in flows
MB Upcoming appt day	Text	Human-friendly day, e.g. "Monday, July 13"	Instant	Reminder email copy
MB Upcoming appt time	Text	Human-friendly time, e.g. "06:00 am"	Instant	Reminder email copy
MB Upcoming appt name	Text	The service booked	Instant	Service-specific prep content
MB Upcoming appt staff	Text	Who the appointment is with	Instant	"See you with {{ staff }}" personalization
MB Upcoming appt location	Text	Which studio	Instant	Directions, parking, location-specific notes
MB Upcoming appt site	Text	Which Mindbody site (for multi-site brands)	Instant	Multi-brand routing
MB Upcoming appt ID	Text	Mindbody's booking id; "None" when nothing is booked	Instant	No Upcoming Appointment audiences (rebooking pushes)
MB Upcoming appt category	Text	The service category	Instant	Category-level audiences
MB Upcoming appt updated date	Date	When this block last recomputed	Instant	Freshness checks in advanced segments

Appointment history

Property	Type	What it holds	Updates	Use it for
MB First appointment date	Date	The client's first-ever appointment	Instant on status change	New-client journeys, anniversary campaigns
MB Last appointment status	Text	The most recent appointment's outcome (Confirmed, Arrived, NoShow, and so on)	Instant on status change	No-show follow-ups
MB Last appointment status name	Text	Which service that appointment was	Instant on status change	Service-specific follow-up content
MB Last appointment status date	Date	When it happened	Instant on status change	Recency-based audiences
MB Last appointment status location	Text	Where it happened	Instant on status change	Location-specific follow-ups
MB Last appointment updated start time	Date	The start time of the most recently updated appointment	Instant on status change	Advanced scheduling logic

Classes

Property	Type	What it holds	Updates	Use it for
MB Next class booked	Text	The next class on the schedule; "None" when nothing is booked	Instant on booking change	No-class-booked rebooking audiences
MB Next class booked id	Text	Mindbody's class booking id	Instant on booking change	Cross-referencing with Mindbody
MB Next class booked date	Text	The date of that class	Instant on booking change	Reminder copy
MB Next class booked time	Text	The time of that class	Instant on booking change	Reminder copy
MB Next class booked datetime	Date	Date and time combined, as a real date	Instant on booking change	Date math in segments and flows
MB Next class booked staff	Text	Who teaches it	Instant on booking change	Instructor personalization
MB Next class booked location	Text	Which studio	Instant on booking change	Location-specific class content
MB Next class booked site	Text	Which Mindbody site	Instant on booking change	Multi-brand routing
MB Next class updated date	Date	When this block last updated	Instant on booking change	Freshness checks

Purchases and packs

Property	Type	What it holds	Updates	Use it for
MB Last intro offer purchased	Text	The client's most recent intro offer	Instant on sale	The Intro Offer Buyers segment, conversion journeys
MB Last intro offer purchased date	Date	When they bought it	Instant on sale	Timing the intro-to-member conversion push

Per-pack properties. For each pack or series a client buys, the integration writes a dedicated set of three properties named after the pack itself:

Property pattern	Type	What it holds	Updates	Use it for
MB [Pack name] count	Number	Total sessions in the pack	Instant on sale	Knowing what was purchased
MB [Pack name] remaining	Number	Sessions left	Instant	Running-low campaigns ("only 2 classes left")
MB [Pack name] exp date	Date	When the pack expires	Instant	Expiring-soon campaigns

For example, a client who buys the Two Week Intro Offer gets "MB Two Week Intro Offer count", "MB Two Week Intro Offer remaining", and "MB Two Week Intro Offer exp date" on their profile.

Contracts

Property	Type	What it holds	Updates	Use it for
Contract	Text	The current contract's name	Instant	Contract-holder audiences
MB Contract status	Text	The contract's current status	Instant	Active vs. suspended vs. terminated messaging
MB Contract end date	Date	When the contract ends	Instant	The Contract Renewal Window segment

Events

Events power flow triggers and revenue attribution. Each carries its details as event properties, and every event is written with a stable unique identifier, so retries and reconciliation sweeps can never double your revenue or fire a flow twice for the same moment.

Event	Fires when	Key properties	Typical flow
Placed Order	A sale completes in Mindbody (within about a minute)	Total value, line items, location, site	Post-purchase thank-you; this is what Klaviyo revenue reporting and attribution read
Ordered Product	Once per line item of every sale	ProductName, price, quantity, location	Service-specific audiences and post-purchase content per item
MB Appointment Booked	An appointment is created	Site, Location, Staff, Staff ID, Appointment ID, Start, End, Duration minutes	Booking confirmations, pre-visit prep
MB Appointment Cancelled	An appointment is cancelled	Same property family as Booked	Cancellation rescue ("rebook your spot")
MB Appointment Confirmed and related status events	The appointment's status changes (confirmed, arrived, no-show outcomes); the profile's last-appointment block updates at the same time	Same property family, plus the status	No-show follow-ups, arrival-based journeys
MB Class Booked	A class spot is booked	Class, staff, location, schedule details	Class confirmations and first-class welcome
Class completion and cancellation events	Attendance is recorded or a class booking is cancelled	Class, location, timing details	Post-class feedback, cancellation rescue
MB Membership Activated	A membership starts	Membership details, location	New-member onboarding series
MB Membership Cancelled	A membership ends	Membership details, location	Win-back and exit-survey flows
MB Contract Created	A contract is signed	Contract name, status, dates	New-contract welcome and expectation setting
Contract status events	A contract changes status	Contract name, new status	Suspension and reactivation messaging
MB Contract Cancelled	A contract is cancelled	Contract name, dates	Cancellation save and win-back flows

One practical note: an event type appears in your Klaviyo metrics list the first time it fires in your account, so a brand-new account shows the list growing over its first days of activity. If you do not see an event yet, it simply has not happened yet.

Resources

CRMConnect: Mindbody → Klaviyo | Data Points Synced - the live data dictionary spreadsheet, every property and event at a glance.
Sync timing and reliability - the full story of what updates when.
Consent, subscriptions, and privacy - how preference mirrors relate to Klaviyo consent.