> ## Documentation Index
> Fetch the complete documentation index at: https://docs.khaime.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Preview Email Template
> Render a draft subject/body against sample data before saving it.
# Preview Email Template
Renders arbitrary subject/body content against a hard-coded set of sample RFQ/quote/customer data, wrapped in Khaime's standard email layout โ without saving anything. Use this to check a template renders correctly before calling [Upsert Email Template](/api-reference/b2b/upsert-email-template).
## Request Body
Subject line to render, max 255 characters. Not persisted.
HTML body to render. Not persisted.
## Response
```json theme={null}
{
"success": true,
"message": "Template preview generated successfully",
"data": {
"subject": "Your quote from Acme Corp is ready to review",
"html": "...fully wrapped, rendered HTML..."
}
}
```
`html` is the fully wrapped, rendered output โ same layout wrapper used for real sends. The sample data used for placeholders is fixed server-side; you cannot supply your own preview data. See [Upsert Email Template ยง Template Variables](/api-reference/b2b/upsert-email-template#template-variables) for the full list of `{{variable}}` placeholders available and which event types populate which ones โ the fixed preview data covers most of them, but not conditional fields like `rejection_reason`.
## Error Codes
| Status | Cause |
| ------ | ------------------------------------------------------------------- |
| `422` | `subject` or `html_body` missing, or `subject` over 255 characters. |
```bash cURL theme={null}
curl -X POST https://api.khaime.com/api/v1/partner/email-templates/preview \
-H "X-API-Key: pk_sandbox_your_key" \
-H "Content-Type: application/json" \
-d '{
"subject": "Your quote from {{business_name}} is ready",
"html_body": "Hi {{customer_name}}, your quote is ready."
}'
```