> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usefusion.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Conditional Notifications

> Trigger prompts based on a participant's answer to a previous prompt or onboarding question.

Conditional notifications let you configure a prompt to **only fire if a participant's previous answer meets a specific condition**. This is an advanced feature for creating adaptive, branching study flows.

## How It Works

Each prompt can have an optional **notify condition** with four fields:

| Field           | Description                                                                                                     |
| --------------- | --------------------------------------------------------------------------------------------------------------- |
| **Source Type** | What kind of question to check: `prompt` (another prompt in the quest) or `onboarding` (an onboarding question) |
| **Source ID**   | Which specific prompt or onboarding question to evaluate                                                        |
| **Operator**    | The comparison operator                                                                                         |
| **Value**       | The value to compare the participant's answer against                                                           |

When a condition is set, the prompt's notification is **only sent** if the participant's answer to the source question satisfies the condition.

## Available Operators

| Operator | Label                 | Description                    |
| -------- | --------------------- | ------------------------------ |
| `eq`     | Equals                | Exact match (case-insensitive) |
| `neq`    | Not equals            | Does not match                 |
| `gt`     | Greater than          | Numeric: answer > value        |
| `gte`    | Greater than or equal | Numeric: answer ≥ value        |
| `lt`     | Less than             | Numeric: answer \< value       |
| `lte`    | Less than or equal    | Numeric: answer ≤ value        |

## Source Options

The source list is built from:

* **All other prompts** in the same quest (excluding the current prompt)
* **All onboarding questions** in the quest

This means you can use either a participant's ongoing prompt responses or their initial onboarding answers to determine whether a follow-up prompt should fire.

## Examples

### Follow-up on Poor Sleep

> Only ask about caffeine if the participant reported sleeping poorly.

| Field       | Value                                             |
| ----------- | ------------------------------------------------- |
| Source Type | `prompt`                                          |
| Source      | *"Did you sleep well last night?"* (yesno prompt) |
| Operator    | `eq`                                              |
| Value       | `No`                                              |

**Result**: The caffeine prompt only fires when the participant answered "No" to the sleep prompt.

### High Stress Follow-up

> Only ask about stress coping strategies if stress rating is high.

| Field       | Value                                                  |
| ----------- | ------------------------------------------------------ |
| Source Type | `prompt`                                               |
| Source      | *"Rate your stress level (1–10)"* (numberRange prompt) |
| Operator    | `gte`                                                  |
| Value       | `7`                                                    |

**Result**: The coping strategies prompt only fires when the participant rated stress ≥ 7.

### Based on Onboarding Answer

> Only send exercise prompts to participants who indicated they exercise regularly.

| Field       | Value                                                      |
| ----------- | ---------------------------------------------------------- |
| Source Type | `onboarding`                                               |
| Source      | *"Do you exercise regularly?"* (yesno onboarding question) |
| Operator    | `eq`                                                       |
| Value       | `Yes`                                                      |

**Result**: Exercise-related prompts only fire for participants who answered "Yes" during onboarding.

## Tips

<Tip>
  Conditional notifications are evaluated at notification time. The condition checks the participant's **most recent** response to the source question.
</Tip>

<Warning>
  A prompt with a conditional notification will **never fire** if the source question hasn't been answered yet. Make sure the source prompt is scheduled before the conditional prompt.
</Warning>

* Use conditions to reduce participant burden — only ask follow-up questions when relevant
* Combine with the scheduling system to create sophisticated adaptive study protocols
* You can only set **one** condition per prompt