# Outbound bots

Outbound bots are used to proactively reach out to your existing contacts.

It's most commonly used for sending promotional messages, transactional messages, follow-ups, etc.

### Campaign types <a href="#campaign-types" id="campaign-types"></a>

There are two types of outbound bots:

1. One Off Campaign
2. Ongoing Campaign[<br>](https://help.wotnot.io/bot-builder/outbound-bots/building-one-off-campaign)

{% content-ref url="/pages/BzNOVrkKZ9sgdPYPJkq5" %}
[Building Ongoing Campaign](/bot-builder/outbound-bots/building-ongoing-campaign.md)
{% endcontent-ref %}

{% content-ref url="/pages/3nFRMGPAoG91a12iT8hu" %}
[Building One Off Campaign](/bot-builder/outbound-bots/building-one-off-campaign.md)
{% endcontent-ref %}


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