Disable the automation
Go to Board Automations, find the template, and toggle it OFF. This stops future rollups but keeps the app installed.
monday.com app · automation
Subitem Rollup.
Pro
Automatically summarize your subitems — sum, average, status, and more — into the parent item. Unlike monday's native mirror column, the result lives in a standard column you can use in any automation.
14-day free trial
Built on monday's automation engine
Data stays in your account
01
The problem
Native rollups don't talk to automations.
Why native rollups fall short
monday's native subitem summary creates a special mirror column. It's great for viewing aggregated data, but most automations and integrations cannot read or trigger on its value, so you can't use it in standard conditions.
How Subitem Rollup Pro fixes it
We provide a custom automation template that takes subitem column values and writes the result into a normal item column (Number, Text, Date — whatever fits).
Because the result is in a standard column, you can use it in any automation, integration, or dashboard widget that expects standard data — plus we offer summary methods beyond the basics.
02
How it works
Built on monday's own engine.
We don't poll your data or run anything in the background. Subitem Rollup Pro ships a custom trigger and action block that plug straight into monday.com's automations framework — same engine, same permissions, same audit log. Wire them via our pre-built template, or compose a flow in the Workflows builder.
Method 01
Quick setup
Automation template
Drop-in template
subitem-rollup.tpl
When {event types} happen in {subitem column} roll up {subitem column} to {parent column} using {rollup type}.
The four tokens
01
{event types}
The subitem events that trigger the rollup — column value changing, subitem created, moved, or deleted. Pick one or more; the rollup recalculates whenever any selected event fires.
02
{subitem column}
The subitem column to work with. It appears twice: the first instance is where the events happen (the column being watched); the second is the source (the column to summarize). Usually the same — but you can listen on one and roll up another.
03
{parent column}
The target column on the parent item where the result is written.
04
{rollup type}
A predefined rollup (Sum, Average, …) or one of your saved custom types. Custom types are created in the Subitem rollup configurator.
Drop in the template, fill the sentence, you're done.
Watch the template being added to a board's automation center and configured in under a minute.
Method 02
Custom flows
Workflows builder
For more flexibility, we provide dedicated trigger and action blocks in the monday.com Workflows builder. Pair the trigger with the action to listen for subitem changes and write the result to the parent — or combine them with other blocks for multi-step processes.
T
Trigger
Subitem rollup trigger
- Board
- The board the trigger should listen to.
- Subitem column
- The specific column to monitor (filtered for supported columns only).
- Event types
- The subitem events that fire the trigger — column value changed, subitem created, moved, or deleted.
passes item id
A
Action
Subitem rollup action
- Board
- Where the action should execute.
- Item ID
- Passed from the trigger (used for logging and traceability).
- Subitem column
- The source for calculation.
- Parent column
- The target column to write the result to.
- Rollup type
- The method used for the calculation.
Compose a custom flow with our blocks.
See the trigger and action blocks being wired up in the Workflows builder, side-by-side with monday's native blocks.
+
Advanced
Subitem rollup configurator
A board view where you build custom rollup types with advanced logic — filters, status mappings, and more. Once saved, your custom types appear in the {rollup type} picker of both the template and the action block.
Build advanced rules visually.
Create filtered rollups and status-to-status mappings, then save them as reusable types.
Advanced filtering
Create filtered rollups that only include specific subitems. For example: Sum of "Budget" only where "Status" is "Approved".
Status → Status builder
Map combinations of subitem statuses (e.g. "All Done", "Any Stuck") to a specific status on the parent item.
03
Setup guide
Set up in three steps.
From install to a live rollup writing into your parent items.
01
Install the app
- Open the monday.com Apps Marketplace.
- Search for "Subitem Rollup Pro".
- Click Install and choose which workspaces to install to.
02
Set up the automation
2.1 — Choose your method
Use our pre-configured app template in your board's Automations center, or build a custom process with our blocks in the Workflows builder.
2.2 — Configure trigger and action
If using the automation template, fill in the sentence: "When {event types} happen in {subitem column} roll up {subitem column} to {parent column} using {rollup type}."
If using Workflows, configure both blocks: set the trigger (board, subitem column, event types), then set the matching action (source, parent, rollup type).
In either case the core fields are:
- Event types — subitem events that fire the rollup.
- Subitem column — the source column.
- Parent column — the target on the parent.
- Rollup type — predefined or custom.
2.3 — Test the automation
Return to your board, trigger one of the configured events — change a subitem column value, or create/delete a subitem — and watch the parent item update automatically.
03
Create a custom rollup Optional
Skip this step if you only need standard rollups (Sum, Average, …) across all subitems. App authorization is only required when you open the configurator view.
Use the Subitem rollup configurator view to construct advanced logic:
- Add the "Subitem rollup configurator" view to your board.
- Follow the on-screen prompts to authorize the app.
- Click "Create New Rollup".
- Set up your filters (e.g. "Only Status=Done") or status mapping.
- Save your configuration. It will now appear as a "Custom rollup type" in your automation templates and workflows.
04
Supported rollups
Every supported rollup, by source.
All rollups occur within a single board. Cross-board rollups are not supported.
Tip — click any rollup chip below to see a description and example.
| Source | Target | Predefined rollup types |
|---|---|---|
|
Numbers
|
Numbers | sum average median min max count |
|
Time Tracking
|
Numbers | sum average min max |
| Text | sum average min max | |
|
Date
|
Date | earliest latest |
| Timeline | total | |
|
Timeline
|
Timeline | show |
| Date | earliest latest | |
| Numbers | Timeline span (days) Sum of durations (days) | |
|
People
|
People | list |
| Dropdown | list | |
| Numbers | count_all count_distinct | |
|
Status
|
Numbers | percent_done count_not_done count_done count_total |
| Text | ratio_done label_histogram | |
| Status | custom |
Beyond native rollups
- Weighted averagesCalculate averages based on another column's weight.
- ConcatenationJoin text values from subitems into a single summary string.
- Conditional countsCount subitems only if they match specific criteria.
05
Disable / Uninstall
Easy in. Easy out.
Disable the automation any time, or fully uninstall — your data stays put.
Uninstall the app
Go to Apps → Manage Apps and uninstall "Subitem Rollup Pro". Existing data in your columns remains safe.
06
Pricing
Pick a plan.
Start free for 14 days. Scale when you need to.
Basic
For small teams getting started
$39
/ month
billed monthly
Up to 3 boards
Unlimited subitem rollups
Advanced summary methods
Recommended
Standard
For growing teams with more boards
$99
/ month
billed monthly
Up to 10 boards
Unlimited subitem rollups
Advanced summary methods
Pro
For larger teams and power users
$239
/ month
billed monthly
Up to 25 boards
Everything in Standard
Priority support
14-day free trial
·
Secure marketplace billing
·
30-day money-back guarantee
07
FAQ
Frequently asked.
Does this app store my board data outside monday.com?
No — the app operates within the monday.com environment. We process data transiently to perform the calculation and write it back to your board immediately.
Can I use the rolled-up values in other automations?
Yes — that's the main benefit. Since we write to normal item columns (like Numbers), you can use them in any standard monday automation.
Is cross-board rollup supported?
Currently, no. The app supports rolling up subitems to their parent items within the same board only.
What happens to my data if I uninstall the app?
Your data is safe. The values already written to your columns remain there. The app simply stops updating them.