Whole blocks, not just words
A merge tag changes a value; a Dynamic Content Tag changes an entire section — hero image, offer, CTA. One email becomes the right email for every segment inside it.
Content
Where a merge tag swaps a value, a Dynamic Content Tag swaps a whole block — a different hero, offer, or call to action depending on who's reading. Branch on fields, list membership, and — in ONE — Pixel and conversion events.
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What it does
A merge tag changes a value; a Dynamic Content Tag changes an entire section — hero image, offer, CTA. One email becomes the right email for every segment inside it.
Conditions read custom fields and list membership — and uniquely in ONE, Pixel events and conversion history. Show a "finish your purchase" block only to people who viewed pricing but didn't buy.
The same [[tag]] wrapper is how RSS feed content embeds into emails, with iteration over items and per-item formatting — the backbone of self-publishing newsletters.
Two syntaxes
Reach for a saved unit when the same branching block recurs across sends; reach for an inline conditional for a one-off fork right in the body.
Build a rule-based content unit — several blocks each with their own conditions — and drop the tag into any email. Reuse it across sends; edit it in one place.
Write the conditional right in the body for a one-off branch — show this block when a field matches, fall back otherwise.
Two rendering modes
A saved content unit holds several blocks, each with its own rule. You choose how the tag resolves when more than one rule fits a recipient.
What conditions can read
Most tools condition on stored fields alone. In Mumara ONE a content rule can also read behaviour, so the block a contact sees reflects their actions, not just the data they were imported with.
Any value on the contact record — plan, profession, interests, lifecycle stage.
Which lists a contact belongs to, so the block matches the audience they sit in.
Pages and actions tracked on your site — show a block only to people who viewed pricing.
Whether a contact has purchased or converted — hide an offer from people who already bought.
Country, region, or city captured as fields — swap the offer or shipping note by location.
Signup date, renewal date, and other date fields — branch on where someone is in their journey.
Combine conditions in one rule to target a precise slice — Pro-plan contacts in the US who haven't converted.
What teams do with it
“We used to run three versions of every campaign — one per plan tier — and inevitably one would go out with a stale offer. Now it's one email with conditional blocks, and the clever bit for us is branching on conversion events: people who already bought simply never see the upsell. Less to maintain, fewer mistakes.”
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Common questions
A merge tag (like a custom field) substitutes a value — a name, a date. A Dynamic Content Tag swaps an entire block of content — a different hero, offer, or CTA. Use merge tags for values, DCTs for sections.
Saved content units referenced as [[tag]] for reusable, rule-based blocks; and inline [if:field=value] … [else] … [endif] conditionals written directly in the body for one-off branches.
A saved unit can resolve two ways: "first qualifies" shows only the first block whose rule matches (mutually-exclusive branches), while "all qualified, combined" concatenates every matching block (a recipient collects several relevant sections in one email).
Custom field values and list membership, plus — uniquely in ONE — Pixel events and conversion history. So you can branch on what a contact did on your site, not just the data they were imported with.
They layer in a fixed order: conditional blocks resolve first, then spintax rotates wording inside the chosen block, then %%merge tags%% fill in per-contact values. So a DCT block can itself contain spun phrasing and personalized fields.
Yes. The same [[tag]] wrapper renders RSS feed items into an email, with iteration over items and per-item formatting (truncate, strip images, strip styles). It's the backbone of self-publishing evergreen newsletters.
Related
The field values conditions branch on.
Read moreWhere segments choose the audience, DCTs vary the content within it.
Read moreSite events that conditions can read — content that reacts to behaviour.
Read moreRSS content embeds via the same [[tag]] mechanism, with iteration and formatting.
Read moreSpintax rotates wording; DCTs swap whole blocks. They layer in one message.
Read moreMumara ONE · Dynamic Content Tags
Conditional blocks that branch on fields, lists, and behaviour — saved as reusable units or written inline. The right hero, offer, and CTA for every recipient, in a single send.