> ## Documentation Index > Fetch the complete documentation index at: https://docs.callkaro.ai/llms.txt > Use this file to discover all available pages before exploring further. # Conditional Triggers > Control when post-call WhatsApp messages send ## Overview Conditional triggers let you control exactly **when** post-call WhatsApp messages send. Instead of sending after every call, messages only send when all conditions match. Conditional triggers only apply to **post-call** WhatsApp functions. In-call functions use AI-triggered descriptions instead. Condition Mapping ## How It Works **Logic:** All conditions must match (AND logic) ``` Call Ends → Check Call Type → Check Conditions → If ALL Match: Send Message ``` ## Call Type Filter Filter messages by call connection status: ### Options **All (Default)** * Send for all calls * Connected and not connected **Connected** * Only send when call was answered * `call_duration > 0` * Customer spoke with AI **Not Connected** * Only send for missed/failed calls * `call_duration = 0` * Voicemail, busy, no answer ### Use Cases **Connected Only:** * Appointment confirmations (only if booked) * Survey links (only for completed calls) * Thank you messages (only after conversation) **Not Connected:** * Missed call follow-up * "We tried to reach you" messages * Callback request confirmations ## Variable Conditions Add conditions based on call data. Messages only send when values match exactly. ### Condition Sources **1. Call Metadata** Customer data from your system. **Example Conditions:** * `lead_source` equals `"website"` * `customer_type` equals `"premium"` * `region` equals `"west"` **2. Post-Call Variables** AI-extracted data from conversation. **Example Conditions:** * `appointment_booked` equals `true` * `interested` equals `true` * `confirmation` equals `true` -`objection_type` equals `"price"` ### Adding Conditions In the "When should this function be called?" section Choose Call Metadata or Post-Call Variables Choose which field to check Enter the value to match (equals comparison) Repeat to add multiple conditions (all must match) ## Condition Examples ### Example 1: Appointment Confirmation **Send only when:** * Call Type: **Connected** * Post-Call Variable: `appointment_booked` equals `true` **Result:** Message sends only if: 1. Customer answered the call 2. AND appointment was actually booked ### Example 2: Not Interested Follow-Up **Send only when:** * Call Type: **Connected** * Post-Call Variable: `interested` equals `false` * Call Metadata: `lead_source` equals `"referral"` **Result:** Message sends only if: 1. Customer answered 2. AND showed no interest 3. AND came from referral program ### Example 3: Missed Call Message **Send only when:** * Call Type: **Not Connected** **Result:** Message sends for all missed/unanswered calls. ### Example 4: Premium Customer Survey **Send only when:** * Call Type: **Connected** * Call Metadata: `customer_type` equals `"premium"` * Post-Call Variable: `call_completed` equals `true` **Result:** Message sends only if: 1. Call was connected 2. AND customer is premium tier 3. AND call reached natural completion ## AND Logic All conditions must match for message to send. **Example:** ``` Condition 1: interested = true Condition 2: appointment_booked = true Condition 3: Call Type = Connected Message sends ONLY when ALL THREE are true ``` **If any condition fails:** ``` interested = true ✅ appointment_booked = false ❌ Call Type = Connected ✅ Message WILL NOT send (one failed) ``` ## Boolean Variables For true/false post-call variables: **Options:** * `true` * `false` **Example:** * `interested` equals `true` - Send only when interested * `callback_requested` equals `true` - Send only when callback wanted ## Use Cases ### Confirmation Messages **When to send:** * Connected calls only * When action was completed **Conditions:** ``` Call Type: Connected appointment_booked: true ``` ### Follow-Up Surveys **When to send:** * Connected calls only * Call was completed successfully **Conditions:** ``` Call Type: Connected call_completed: true ``` ### Callback Requests **When to send:** * Connected or not connected * Customer requested callback **Conditions:** ``` Call Type: All callback_requested: true ``` ### Sales Follow-Up **When to send:** * Connected calls * Customer showed interest * No immediate purchase **Conditions:** ``` Call Type: Connected interested: true purchased: false ``` ## Best Practices * **Start simple** - Begin with call type + one variable * **Test thoroughly** - Make test calls to verify conditions * **Use connected filter** - Most messages should filter for connected calls * **Verify variables exist** - Ensure post-call variables are configured * **Monitor delivery** - Check if messages send as expected * **Add escape conditions** - Don't send if already sent elsewhere Create different functions for different scenarios rather than one complex function with many conditions. ## Multiple Functions You can create multiple post-call WhatsApp functions, each with different conditions: **Example Setup:** **Function 1:** `appointment_confirmation` * Connected + `appointment_booked = true` **Function 2:** `interested_follow_up` * Connected + `interested = true` + `appointment_booked = false` **Function 3:** `not_interested_feedback` * Connected + `interested = false` **Function 4:** `missed_call_message` * Not Connected Each sends independently based on its own conditions.