Builds By Luke
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monday.com App · v1.0.0 · Coming soon

Rollup Sync

Roll subitem values up into a REAL parent column — so your automations can finally use them.

  • 11 aggregations
  • Writes real values
  • Unlocks automations
  • Subitem rollups
See how it works Docs & support
Rollup Sync icon

The gap it closes

monday gives you two ways to summarise subitems, and both dead-end. The formula column can calculate anything but cannot write its result into another column, and nothing can trigger off it. The rollup column is supported in triggers only — not in conditions, not in actions.

So the moment you want “when every subitem is done, move the parent to Complete”, you are stuck. Users describe this in the community as a showstopper.

Rollup Sync writes a real value into a real column. That is the entire unlock — once the number is genuinely in a Number or Status column, every native automation, filter, sort and dashboard widget works on it normally.

How it works

Three steps, then it runs itself.

  1. 01

    Pick the subitem column to summarise

    Choose any column on the subitems board — hours, status, dates, text, checkboxes.

  2. 02

    Choose how to combine it

    Sum, average, min, max, count, count non-empty, percent done, all-done, joined text, earliest date or latest date.

  3. 03

    Point it at a real parent column

    The result is written into an actual Number, Text, Status, Date, Checkbox or Rating column on the parent — which native monday automations can then trigger on.

How it behaves

The decisions that matter.

  • Summing nothing writes 0, not blank

    Blanking a parent when its last subitem is deleted would silently destroy data that downstream automations depend on.

  • A parent with no subitems is never “all done”

    Vacuous truth is the wrong answer here. An empty parent stays incomplete.

  • Billing states never look like errors

    A run blocked by your plan returns a normal result with a reason, so it never pollutes your automation failure log.

  • Only writable columns are offered

    The destination picker lists only column types the app can genuinely write, so you cannot configure a rollup that fails at 2am.

Pricing

Free tier that actually works.

Billed per account through monday.com's built-in monetization — not per seat. The free tier is deliberately functional so the app can prove itself on a real board before you pay for it. Trials get full Pro.

Free

$0

1 rollup recipe — fully functional, on one board

Basic

$12/mo

Up to 5 recipes

Standard

$30/mo

Up to 25 recipes

Pro

$60/mo

Unlimited recipes

Documentation & data handling

Everything it touches, stated plainly.

Installing & getting started

  1. Install Rollup Sync into your monday.com account and approve the permissions listed below.
  2. Open the board you want it on and add the app’s Automation block.
  3. Follow the three steps above. The free tier covers 1 rollup recipe — fully functional, on one board, so you can prove it works before paying.
  4. Stuck? Email support@buildsbyluke.com — two business days response.

Permissions, and why each one

me:read
Identify the installing account.
boards:read
Read the subitems and their values in order to aggregate them.
boards:write
Write the aggregated result into the parent column — the core function of the app.

What is stored, and where

  • The app stores no board data. Values are read, aggregated in memory, written back, and discarded within the request.
  • Only a small per-account record of which recipes exist is retained, in monday’s own app storage.
  • The app runs entirely on monday code — monday.com’s own infrastructure. There is no external database.

Full policy: Privacy · Terms

Technical detail

Version
1.0.0
Hosting
monday code (hosted on monday.com infrastructure)
Runtime
Node.js 18
Authentication
OAuth 2.0 + per-request JWT verification
monday surfaces
Automation block
App ID
11809876
Support SLA
Two business days
Publisher
Builds By Luke, Canada

Questions people ask.

How is this different from a mirror or formula column?

Those produce a display value nothing can act on. This writes a real value into a real column, so native automations, filters and dashboards all work with it.

Which parent column types can it write?

Number, Text, Long text, Status, Date, Checkbox and Rating.

Can it write a status label?

Yes — by label, so your own board’s labels are respected. “All done?” maps to the labels you choose.

Rollup Sync is on its way.

It is built and running — currently going through monday.com’s marketplace review. Want a look before it lands?

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