Variables

Variables are placeholders that Wave Runner replaces with real data when a workflow runs. Use them in any text field — SMS message body, API URL, CRM field value. Write {variable_key} and Wave Runner substitutes the actual value at runtime. For example:

Hi {name}, thanks for your call. Here's what we discussed: {summary}

Resolves to:

Hi Sarah, thanks for your call. Here's what we discussed: You expressed interest in the Pro plan and asked for a follow-up demo next week.

Inserting variables

Click + Insert Variable inside any text field in a node’s configuration panel. The variable picker opens — search by name or browse by category. Click any variable to insert it at your cursor position.

Type variables directly into any field without the picker. Type { followed by the variable key and }.

The picker only shows variables available for your workflow’s trigger type. Call Data variables do not appear in a Facebook Lead workflow, for example.

Variable reference

Contact info

Always available regardless of trigger type.

Variable	Description	Example
`{name}`	Contact’s full name	`Sarah Chen`
`{first_name}`	First name	`Sarah`
`{last_name}`	Last name	`Chen`
`{phone_number}`	Phone number	`+14155551234`
`{email}`	Email address	`sarah@example.com`

Call data

Available in workflows triggered by End of Call.

Variable	Description	Example
`{summary}`	AI-generated call summary	`Sarah asked about pricing and requested a demo.`
`{outcome}`	Call outcome label	`booked`, `interested`, `not_interested`
`{duration}`	Call length in seconds	`142`
`{sentiment}`	Detected sentiment	`positive`, `neutral`, `negative`
`{transcript}`	Full call transcript	(full conversation text)
`{urgent}`	Whether the call was flagged urgent	`true` or `false`
`{call_id}`	Unique call record identifier	`abc123`
`{start_time}`	When the call started (ISO 8601)	`2026-04-18T14:23:00Z`

Call data variables resolve to empty strings if used in a workflow with a non-call trigger.

Appointment

Available when a booking was made during the call.

Variable	Description	Example
`{appointment.status}`	Whether an appointment was booked	`booked` or `not_booked`
`{appointment.start_time}`	Appointment start time (ISO 8601)	`2026-04-22T10:00:00Z`
`{appointment.appointment_date}`	Human-readable date	`April 22, 2026`
`{appointment.timezone}`	Appointment timezone	`America/New_York`
`{appointment.calendar}`	Calendar the booking was added to	`Sales Demo Calendar`

Use a Condition node to check {appointment.status} == 'booked' before sending a confirmation SMS, so it only fires when a booking actually occurred.

HubSpot contact

Available in workflows triggered by a HubSpot event.

Variable	Description
`{firstname}`	First name
`{lastname}`	Last name
`{email}`	Email address
`{phone}`	Phone number
`{company}`	Associated company
`{lifecyclestage}`	HubSpot lifecycle stage

Additional properties — city, state, zip, country, job title — are available in the picker when a HubSpot trigger is active.

Facebook lead

Available in workflows triggered by Facebook Lead.

Variable	Description	Example
`{full_name}`	Lead’s full name	`Marcus Rivera`
`{email}`	Email address	`marcus@example.com`
`{phone_number}`	Phone number	`+13105559876`
`{ad_name}`	Facebook ad name	`Spring Promo — Book a Call`
`{campaign_name}`	Facebook ad campaign	`Q2 Lead Gen`

Custom variables

Define your own variables on the trigger node. Add entries to the Custom variables list on the trigger, give each a key (e.g., account_tier), and reference it anywhere in the workflow as {account_tier}. Use case: Trigger a workflow via webhook with a custom payload. Define the expected keys as custom variables so downstream nodes can reference them.

Example: SMS after a booked call

Hi {name}! Your appointment is confirmed for {appointment.appointment_date} at {appointment.start_time} ({appointment.timezone}).

Here's a quick summary of our call: {summary}

Reply STOP to opt out.

Next steps

Executions

Monitor workflow runs, inspect node logs, and troubleshoot failures.

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Agents

Conversations

Campaigns

Workflows

Integrations

Account & Billing

Inserting variables

Variable reference

Contact info

Call data

Appointment

HubSpot contact

Facebook lead

Custom variables

Example: SMS after a booked call

Next steps

Executions

​Inserting variables

​Variable reference

​Contact info

​Call data

​Appointment

​HubSpot contact

​Facebook lead

​Custom variables

​Example: SMS after a booked call

​Next steps

Executions

Inserting variables

Variable reference

Contact info

Call data

Appointment

HubSpot contact

Facebook lead

Custom variables

Example: SMS after a booked call

Next steps