Get a template's full content, to load it for editing or preview. With store_id, the merge fields in html_content are filled in with that location's details. Returns the template.

Prerequisites: a bearer token and the template's id (value in GET /api/v1/campaign/template/email/list).

Authentication: Account token. The template must belong to your account tree or be a shared (global) template, and store_id must be inside your tree; otherwise 422.

Rate limit: none.