Get a template's full content, to load it for editing. With store_id, the merge fields in html_content are filled in with that location's details; add preview=true to also expand [allReviewSite] into the location's review sites and fill the customer fields with sample values. Returns the template.

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

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

Rate limit: none.