Actions66
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Template → Update
AI-generatedSummary
Updates a Lettr template identified by its slug. Supply the new HTML or Topol JSON content, and optionally change its name or project ID.
Inputs
- Slug (required) — URL-friendly identifier of the template to update.
- Update Fields — Fields to update: HTML content, Topol JSON content, template name, or project ID. HTML and JSON are described as mutually exclusive; provide the content format you want to set.
Output shape
A single item containing the API response for the updated template.
The source pack provides only a signature-level view of the implementation, so the exact response fields are not shown.