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Date of Birth Field

The Date of Birth field is a built-in system field that stores a contact’s birthday in Month/Day/Year format. It serves two practical purposes: triggering automated birthday communications through workflows, and filtering contacts by age in Smart Lists.


The Date of Birth field can be filled in several ways:

  • Manual entry — edit the field directly on the contact record.
  • Form submissions — include a Date of Birth field in any form or survey.
  • CSV import — include a column mapped to the Birthday field when importing contacts.
  • API — populate via integration if you’re syncing data from another system.

Contact detail fields panel with the Date of Birth field visible in the contact profile alongside name, phone, and email fields

You can trigger automated messages — emails, SMS, or internal tasks — based on a contact’s birthday.

  1. Go to Workflows and create a new workflow.
  2. Set the Trigger to Birthday.
  3. Choose when to trigger:
    • On the birthday
    • Before the birthday (e.g., 7 days in advance)
    • After the birthday (e.g., 1 day later)

Common actions for birthday workflows:

  • Send Email — personalized birthday greeting or promotional offer.
  • Send SMS — short birthday message or discount code.
  • Assign Task — alert a team member to follow up manually.
StepAction
1Trigger: Birthday
2Send Birthday SMS
3Send Birthday Email
4(Optional) Notify internal team

The Date of Birth field enables age-based filtering so you can build segments for targeted campaigns.

  1. Go to Contacts → Smart Lists.
  2. Apply a filter using the Birthday field and choose the Age condition.
  3. Select the comparison:
Filter conditionExample use
Age is greater than XTarget contacts aged 50 and above
Age is less than XPromotions for contacts under 25
Age is between X and YFocus on a specific range, e.g., 30–40

Age is calculated dynamically from the stored birthday and today’s date, so the segment stays accurate without manual updates.


  • Capture birthdays at intake — include a birthday field in your lead capture forms so you have the data from the start rather than needing to backfill it.
  • Use MM/DD/YYYY format — consistently formatted dates prevent automation failures.
  • Test your workflow first — create a sample contact with a birthday set to tomorrow and verify the workflow fires correctly before making it live.
  • Check time zone settings — birthday triggers may use the contact’s configured time zone; confirm this matches your expectations for timing.

IssueSolution
Birthday automation is not triggeringConfirm the Date of Birth field is fully populated with a valid date including the year
Age calculation is wrongVerify the birth year is entered correctly — missing or incorrect years cause age errors
SMS or email was not sent on the birthdayCheck workflow timing settings, trigger configuration, and the contact’s time zone