Content blocks
Reusable email fragments for Engage broadcasts and automations.
What content blocks are for
Content blocks are reusable email fragments you author once and insert into Engage email messages — for example a shared footer with unsubscribe and preference links, legal copy, or a standard CTA strip.
They live under Engage → Content blocks. Each block has a name, optional description, and a slug. Content blocks are app-scoped (shared across test and live), not tied to one environment the way a sent broadcast is.
Content blocks are for email. Webhook and push messages do not use the content-block library.
Create and edit
- Open Engage → Content blocks.
- Choose New content block (requires Engage manage permission).
- Author the block in the email composer — the same visual / HTML tools as broadcast and automation email steps.
- Save. Use the list search to find blocks by name, slug, or description.
Open an existing row to edit. Row actions support duplicate and archive when your role allows.
Insert: snapshot vs linked
In an email Message step (broadcast) or email canvas step (automation), insert a content block from the composer. Choose how it lands in the message:
| Mode | What happens |
|---|---|
| Snapshot | Copies the block’s content into the message at insert time. Later edits to the library block do not change that message. |
| Linked | Keeps a live reference to the library block. Editing the block can update every message that still references it. |
Typical uses:
- Footer with
{{unsubscribe_url}}and{{preferences_url}}delivery merge tags — Rheo resolves those per recipient at send time. Rheo does not append a hidden footer after you compose. - Shared promo strip or legal notice across many campaigns (prefer linked when you want one edit to propagate)
Archiving a block does not strip snapshots already pasted into messages. Linked references keep a frozen copy when the live link is no longer available.
See Broadcasts — merge tags and Set up Engage — Preference center.
Permissions
- engage:read — view the Content blocks list
- engage:manage — create and edit blocks