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

# MarketingAutomationSendWebhookHeaderInput

> One webhook header. value is required because sending headers replaces the stored list.

<ResponseField name="key" type="String!" required>
  Header name. Letters, numbers, hyphens, and underscores only.
</ResponseField>

<ResponseField name="value" type="String!" required>
  Header value. Write-only; reads do not return it.
</ResponseField>


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