# Capture Block

In any conversational flow, it's often essential to **ask users for specific information**—whether you're collecting contact details, confirming a date, or running a quick survey. The Capture Block lets you **gather user responses in a structured and efficient way** by **saving answers into variables that can be reused throughout your workflow**.

<figure><img src="/files/ScSe66tyJspueH017Pyd" alt=""><figcaption></figcaption></figure>

## **How Does it Work**

The Capture Block guides the user through providing specific inputs and ensures data is saved in the correct format. Here's what you can configure:

#### 1. **Ask a Question**

Customize the prompt to clearly request the information you need.

#### 2. **Store the Response**

Assign a [variable](/getting-started/workspace/variables.md) where the user's response will be saved. Once selected, the block automatically recognizes the variable’s data type.

#### 3. **Choose the Expected Data Type**

Supported types include:

* **Text**: For names, free-form answers, or general input.
* **Number**: Ideal for capturing ages, quantities, or other numeric values.
* **Boolean**: For yes/no questions or binary responses.
* **Date/Time**: Perfect for appointments, deadlines, or availability.

#### 4. **Mandatory or Optional Input**

* **Mandatory**: The user must provide a valid input to proceed. No alternative buttons will be shown.
* **Optional**: A **“Cancel” button** will appear, allowing the user to skip the question. You can configure this button to redirect to any agent or workflow (default is the Welcome Workflow).

#### 5. **Validation**

If the user’s input doesn’t match the expected format, the assistant will automatically ask them to try again. Once a valid value is received, the workflow continues.

{% hint style="danger" %}
The Capture Block is **blocking** by nature—this means **the conversation cannot proceed until the user provides a valid input or chooses to skip (if the question is optional)**.
{% endhint %}

## Common Use Cases

The Capture Block is highly versatile. Here are some typical scenarios:

* **User Registration**: Collect personal details like name, email, or phone number.
* **Bookings & Appointments**: Capture date and time selections for scheduling.
* **Surveys & Feedback**: Ask users for structured opinions or preferences.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://guide.indigo.ai/getting-started/agents-workflows-and-triggers/blocks/logic-blocks/capture-block.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.