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

# engageMessageStart

> Start (or immediately send) a campaign.

<Warning>
Sends live messages to the resolved audience right away — there is no undo for messages already delivered. Estimate reach first with [`engageAudienceUniqueCount`](/api-reference/queries/engageAudienceUniqueCount), and verify content with [`engageMessageSendTestEmail`](/api-reference/mutations/engageMessageSendTestEmail) / [`engageMessageSendTestWhatsapp`](/api-reference/mutations/engageMessageSendTestWhatsapp).
</Warning>

<small>

*Auth* · `x-app-token` · required permission `engageMessageStart`

*Related:* [`engageMessagePause`](/api-reference/mutations/engageMessagePause), [`engageMessageStop`](/api-reference/mutations/engageMessageStop), [`engageMessageDetail`](/api-reference/queries/engageMessageDetail)

</small>



## Related topics

- [engageMessageAdd](/api-reference/mutations/engageMessageAdd.md)
- [EngageMessage](/api-reference/types/EngageMessage.md)
- [engageMessageSendTestEmail](/api-reference/mutations/engageMessageSendTestEmail.md)
- [engageMessageSendTestWhatsapp](/api-reference/mutations/engageMessageSendTestWhatsapp.md)
- [engageMessagePause](/api-reference/mutations/engageMessagePause.md)