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

# Randomize sender numbers

> Rotate across multiple connected WhatsApp numbers to protect deliverability on large campaigns.

Randomize sender is one of Clapvo's two highlight campaign features. Instead of sending every message from a single number, Clapvo rotates across the pool of connected numbers you choose - automatically.

## Why this matters

* Reduces the load on any single WhatsApp number, which lowers the risk of rate-limiting, throttling, or bans.
* Improves overall deliverability of large campaigns.
* Makes outreach look more natural - messages do not all originate from one number.
* Lets you scale outbound volume by simply adding more connections instead of changing how you work.

## Before you start

* More than one connected WhatsApp number (see [Add a connection](/docs/product/connections/add-connection))
* A campaign that is large enough to benefit from rotation (typically anything over a few hundred recipients)

## Steps

<Steps>
  <Step title="Open the campaign builder">
    Create or edit a campaign.
  </Step>

  <Step title="Open the senders step">
    Switch to the connections panel.
  </Step>

  <Step title="Enable randomize sender">
    Turn on the rotation option.
  </Step>

  <Step title="Pick eligible connections">
    Tick the numbers Clapvo can use for this campaign.
  </Step>

  <Step title="Save">
    When the campaign runs, Clapvo distributes messages randomly across the pool.
  </Step>
</Steps>

## Typical use cases

* Bulk promotional broadcasts to thousands of contacts
* Recurring update or reminder campaigns to a wide audience
* Sales outreach where you own several connected business numbers
* Any case where one number alone would hit safe-send limits

## Tips

* Pair this with [Randomize message](/docs/product/campaigns/randomize-message) for the strongest deliverability and engagement combination.
* Add more connections any time you want to scale outbound volume - the rotation pool grows automatically.

## Related

* [Randomize message](/docs/product/campaigns/randomize-message)
* [Add a connection](/docs/product/connections/add-connection)
* [Create a campaign](/docs/product/campaigns/create-campaign)