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PUT
/
api
/
v1
/
templates
/
{templateId}
Update Template
curl --request PUT \
  --url https://api.sequenzy.com/api/v1/templates/{templateId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "subject": "<string>",
  "html": "<string>",
  "blocks": [
    {}
  ],
  "labels": [
    {}
  ]
}
'
{
  "success": true,
  "template": {
    "id": "email_abc123",
    "name": "[Template] Welcome",
    "subject": "Welcome to Acme",
    "labels": ["edm"]
  }
}
Update template metadata, labels, or content. You can pass an email template ID; transactional email IDs and slugs are also resolved for compatibility.

​
Request

​
templateId
string
required
Template ID, transactional email ID, or transactional slug.
​
name
string
Updated template name.
​
subject
string
Updated email subject line.
​
html
string
Replacement HTML body. Use this or blocks, not both.
​
blocks
array
Replacement Sequenzy email blocks. Use this or html, not both. Put block styling under styles; top-level style keys like backgroundColor, backgroundOpacity, borderColor, borderWidth, and borderRadius are normalized into styles.
​
labels
array
Replacement label names. Send an empty array to clear labels. Missing labels are created automatically. The API also accepts label as a compatibility alias.
curl -X PUT "https://api.sequenzy.com/api/v1/templates/email_abc123" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"subject": "Welcome to Acme", "labels": ["edm"]}'

​
Responses

{
  "success": true,
  "template": {
    "id": "email_abc123",
    "name": "[Template] Welcome",
    "subject": "Welcome to Acme",
    "labels": ["edm"]
  }
}