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

# Launch a call campaign

### 1. Declare variables

Declare the variables associated with the data in your CSV file in the [**Custom Variables**](/documentation/build/variables/getting-started-with-variables#custom-variables) section, then define them in the [**Call Context**](/documentation/build/variables/getting-started-with-variables#step-2-variable-initialization-block-call-context) section.

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### 2. Navigate to the Campaigns section

* First, go to the **"Campaigns (outbound)"** section (highlighted in red in the screenshot below).
* Then, click on the **"Add Campaign"** black button (highlighted in blue).

<img src="https://res.cloudinary.com/dgre4d6vr/image/upload/v1737993627/campaign_gm1ax4.png" alt="Launch a Campaign" className="block mx-auto w-full max-w-2xl h-auto rounded-lg shadow-lg border border-gray-200" />

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### 3. Associate a phone number and agent

* Assign a phone number to the campaign (highlighted in red below). If you don’t have a phone number yet, refer to the [**Associate your agent with a phone number**](/documentation/getting_started/build_your_first#associate-your-agent-with-a-phone-number) section.
* Link the correct agent to the campaign (highlighted in blue).

<img src="https://res.cloudinary.com/dgre4d6vr/image/upload/v1737993627/agent_zxlpjn.png" alt="Select the number and the agent associated to the campaign" className="block mx-auto w-full max-w-2xl h-auto rounded-lg shadow-lg border border-gray-200" />

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### 4. Upload the CSV file

Upload your CSV to the block highlighted in red below. The file must include:

* A column named **`phone_number`** with the numbers to call.
* Columns with the exact names of the variables declared in Step 1, with appropriate values.

Use this [**CSV template**](https://rounded-studio-dev.vercel.app/files/campaign_data_example.csv) as a reference.

<img src="https://res.cloudinary.com/dgre4d6vr/image/upload/v1737993635/file_cutbnx.png" alt="Insert your CSV file" className="block mx-auto w-full max-w-2xl h-auto rounded-lg shadow-lg border border-gray-200" />

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### 5. Start the campaign

To test your agent with a single number:

* Click on **"Single test"** (highlighted in blue below).
* Fill in the variables manually.

To launch the full call campaign:

* Click on the **"Start campaign"** button (highlighted in red below).

<img src="https://res.cloudinary.com/dgre4d6vr/image/upload/v1737993642/start_g2caii.png" alt="Start Campaign and proceed a single test" className="block mx-auto w-full max-w-2xl h-auto rounded-lg shadow-lg border border-gray-200" />

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<Tip>
  Calls will be processed one at a time.\
  For simultaneous calls, please contact: **[team@callrounded.com](mailto:team@callrounded.com)**
</Tip>