Reference GHL contact fields in AI conversations

Use GHL contact custom field values in your AI agent prompts to personalize conversations with caller-specific data.

Your AI agent can access contact field values synced from GHL and use them during live conversations. This lets the agent reference a caller’s membership status, preferred location, or any other custom field without the caller repeating themselves.

Set up custom field references

  1. Identify field names in GHL

    In your GHL dashboard, go to Settings > Custom Fields and note the exact field names you want to reference (e.g., membership_tier, preferred_location).

  2. Enable Update User Details

    Open your agent in the Agent Builder. In the Tools & Abilities tab, enable update_user_details. This tool allows the agent to read and write contact field values during conversations.

  3. Reference fields in your prompt

    Add merge fields to personalize the conversation. For example, reference contact.first_name to greet by name, contact.membership_tier to acknowledge their status, and contact.preferred_location to suggest their usual branch.

  4. Handle missing values
    IF FIELDS ARE MISSING:
    - If no membership_tier: don't mention membership
    - If no preferred_location: ask "Which location works best for you?"
    Never say "I don't have that on file" — just skip the personalization.
  5. Test in Voice Lab

    Test with contacts that have custom fields populated. Verify the agent references data naturally and handles missing values gracefully.

Common fields for voice agents

FieldHow the agent uses it
membership_tierAdjust tone, offer priority scheduling for VIP members
preferred_locationSuggest their usual location for appointments
preferred_providerOffer to book with their preferred provider
last_visit_dateReference history for a personal touch
insurance_providerConfirm insurance before booking
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