ClickUp to Attio Sync
Keep ClickUp delivery work visible in Attio without asking your client team to copy project status, task details, or time data by hand. This custom integration maps selected ClickUp Spaces, Folders, Lists, tasks, and Custom Fields into the Attio records and lists your team already uses. We scope the exact field map with you, then install a ClickUp-to-Attio sync that combines real-time webhook updates with an on-demand resync action for backfills and reconciliation. The result is not a generic ClickUp mirror. It is a scoped operational sync for teams that manage delivery in ClickUp and customer context in Attio.
Who this is for
This build is for teams that run delivery work in ClickUp but manage client, account, or project reporting in Attio. It fits best when ClickUp is the operational system of record for tasks and time, while Attio is where the client-facing team needs project status, task context, and reporting-ready fields.
It is not a generic ClickUp mirror. We scope the ClickUp Spaces, Folders, Lists, and Custom Fields that should reach Attio, then shape them into the Attio objects, records, lists, and attributes your team actually uses.
How the sync works
Each in-scope ClickUp List maps to a matching Attio record. Each synced ClickUp task becomes an entry on a dedicated Attio task surface, parented to that record. The task entry captures identity, name, status, priority, due date, assignees, time estimate, archived state, and whichever Custom Fields you named during scope. Time fields arrive from ClickUp in milliseconds and are pre-converted to hours so reporting views read directly.
Real-time updates run on ClickUp's webhook events. The standard subscription set covers task creation, task updates, task time-estimate changes, task deletion, and the equivalent List lifecycle events. Logged time (the time-tracked field) is either added to the real-time subscription set or refreshed during the resync path, depending on how the team needs to consume it. We agree the choice during scope.
On the Attio side, list-level changes update the matching record using matching_attribute upsert behavior, so one Attio record stays tied to one ClickUp source List. Tasks upsert by ClickUp task ID, so the same source task is always the same Attio entry.
When a task is deleted in ClickUp, the matching Attio entry is soft-deleted instead of removed, so active-task views can filter it out while historical reporting stays intact.
What we configure during scope
The scoping call is where the pattern becomes your build. Everything below is a decision we make with you, not a setting you ever have to maintain on your own.
| Decision | What we decide with you |
|---|---|
| ClickUp coverage | Which Workspace, Spaces, Folders, and Lists should feed Attio. |
| Attio destination | Which Attio object represents a ClickUp List or project, and which list holds synced tasks. |
| Custom fields | Which ClickUp Custom Fields matter, where they land in Attio, and how option values are resolved. |
| Time data | Whether estimates, tracked time, or both should sync, and whether tracked time updates in real time or through resync. |
| Resync | Whether your team needs one-record and bulk resync actions inside Attio. |
| Directionality | Whether the build is ClickUp to Attio only, or whether any Attio to ClickUp push behavior is in scope. |
| Audit needs | What support history should be visible inside Attio without exposing application logs. |
Why this works with the ClickUp API
ClickUp gives this pattern the API surface it needs: Workspace-level webhook subscriptions, location filters for Spaces, Folders, Lists, and tasks, signed webhook deliveries, Custom Field metadata, and REST endpoints for setup and resync.
For real-time updates, the integration subscribes to the ClickUp task and List events needed for the scoped build (ClickUp Webhooks docs). Webhook payloads include the event name, source resource ID, webhook ID, and, when available, a history_items array describing what changed. We use those payloads to route the change, verify scope, and update the matching Attio surface.
ClickUp's API also supports specific Custom Field types, including dropdowns, labels, dates, text, checkboxes, numbers, currency, users, tasks, progress fields, location, and emoji ratings (Custom Fields docs). We map the fields you name during scope instead of mirroring every ClickUp field into Attio. Option-based fields are not always human-readable as delivered: dropdown values use option IDs that have to be resolved through the field's type_config before they are useful in Attio. If your workspace depends on fields outside ClickUp's API-facing Custom Field type list, such as formula or file-style fields, we verify that behavior during scope before promising a sync.
For larger backfills, the integration pages through ClickUp's List Tasks endpoint and applies the task options agreed during scope, such as whether to include closed tasks, subtasks, or tasks that appear in multiple lists. The resync then reconciles the Attio task surface by creating missing entries, updating existing entries, and archiving entries whose ClickUp source task is no longer present in the configured result set. ClickUp's per-token rate limits (Rate Limits docs) are 100 requests per minute for Free Forever, Unlimited, and Business workspaces; 1,000 per minute for Business Plus; and 10,000 per minute for Enterprise. Backfills batch their work and wait on X-RateLimit-Reset rather than retrying tightly.
How reliability is handled
The sync is designed around the failure modes ClickUp documents for webhooks and rate limits.
Each incoming ClickUp webhook is signature-verified before it is processed (webhook signature docs). In-scope events are written idempotently, so repeated delivery attempts do not create duplicate Attio records. Out-of-scope events are ignored before they write to Attio.
ClickUp can mark webhooks as Failing or Suspended when endpoints return errors or take too long to respond (Webhook health docs: Active, Failing, Suspended, with suspension on repeated failure or 401 / 410 responses). Because failed events are not resent after recovery, we do not rely on webhook replay as the only recovery path. When included in scope, the resync action can pull the current ClickUp task state again and reconcile it against the Attio task surface. The processed-delivery history is kept in Attio so the support and implementation teams can trace what happened without digging through application logs first.
How setup works
During scope we confirm the ClickUp Workspace and the Attio workspace that should be connected. After connection, the app verifies the authorized ClickUp Workspace, registers the agreed webhook subscriptions, provisions the Attio surfaces in scope, and applies the Space, Folder, and List filters that determine what is allowed to sync.
- Scope what should sync. We confirm the ClickUp Workspace and the Attio workspace that should be connected, which Spaces, Folders, and Lists should reach Attio, which Custom Fields belong where, and whether you need on-demand resync, logged-time sync, or any Attio-to-ClickUp push behavior in the build.
- Authenticate ClickUp. For one-Workspace custom installs, we use a ClickUp personal API token from an approved Workspace admin or service account. During scope we confirm who owns the token, which Workspace it can access, and how rotation should be handled. OAuth-based authentication can replace the token model for engagements that require it.
- Install the Attio app. We install the custom Attio app into your workspace. Workspace Settings exposes the connection field, the scoping filters, and the on-demand actions we agreed in scope.
- Provisioning runs automatically. On connection the app verifies the authorized ClickUp Workspace, registers the agreed webhook subscriptions, provisions the Attio surfaces in scope, and applies the Space, Folder, and List filters that determine what is allowed to sync.
- Real-time sync begins. In-scope ClickUp events flow into Attio within seconds. The resync action stays available for any backfills, reconciliations, or one-off catch-ups the team needs later.
Known limitations
One-way by default
The standard build syncs ClickUp to Attio. Attio-side resync actions pull current ClickUp data again, but automatic Attio to ClickUp task creation, status updates, or field writes are separate scope items.
No comments or attachments by default
Comments and attachments usually do not map cleanly to CRM reporting. We leave them in ClickUp unless there is a specific reason to surface them in Attio.
Assignees are not Attio People by default
ClickUp assignees are usually internal delivery users, not customer contacts. Matching them to Attio People records is possible, but it should be scoped intentionally.
Custom fields are mapped, not mirrored
We map named ClickUp Custom Fields to named Attio destinations. New ClickUp fields do not automatically appear in Attio unless the integration is updated to include them.
One ClickUp Workspace by default
The standard pattern connects one ClickUp Workspace to one Attio workspace. Multi-workspace or multi-team setups need explicit scoping.
Custom install, not a Marketplace app
This is a scoped custom engagement, not a one-click Attio Marketplace install.
Frequently asked questions
Can ClickUp sync project status into Attio?
Yes. In this build pattern, each in-scope ClickUp List maps to a matching Attio record, and List-level changes update that record instead of creating duplicates. We use ClickUp's List webhook events for real-time changes and Attio's matching_attribute upsert behavior to keep one Attio record tied to one ClickUp source List.
Can ClickUp tasks appear under the matching Attio record?
Yes. Each synced ClickUp task becomes an Attio list entry parented to the Attio record that represents the source ClickUp List. The task entry can include task name, status, priority, due date, assignees, time estimate, archived state, configured Custom Fields, and (when in scope) tracked time refreshed during resync.
Does logged time sync in real time, or only during resync?
Time estimates flow in real time through ClickUp's estimate-updated event. Logged time (the time-tracked field) can either be added to the real-time subscription set or refreshed through the resync path, depending on how often the team needs it and how chatty the ClickUp Workspace is. We agree which path during scope.
Can we choose which ClickUp Spaces or Lists sync?
Yes. We scope the integration by Workspace and then apply Space allowlists plus Folder or List exclusions when only part of ClickUp should reach Attio. That keeps internal, admin, or non-client work out of the CRM.
Can ClickUp Custom Fields sync to Attio?
Yes, when the fields are named during scope and have a clear Attio destination. We do not mirror every ClickUp Custom Field automatically. For dropdowns and labels, we resolve option IDs into readable values before writing them into Attio. ClickUp's API-facing Custom Field type list does not currently cover formula or file-style fields; if your workspace depends on those, we verify the exact behavior during scope before promising a sync.
Does it sync comments and attachments?
Not by default. Comments and attachments usually do not map cleanly to CRM attributes or reporting views. We scope those separately if there is a specific business reason to bring them into Attio.
Is this a two-way sync?
Not by default. The standard pattern is ClickUp to Attio. Attio-side resync actions can pull ClickUp data again, but automatic Attio to ClickUp task creation or status updates are separate scope items.
What happens if a ClickUp webhook fails?
The build does not depend on ClickUp replaying old failed events after recovery. We verify webhook signatures, process events idempotently, keep an audit trail, and include a resync path when the workspace needs backfill or reconciliation.
Is this an Attio Marketplace app?
No. This is a custom integration installed into your workspace as part of a scoped engagement. That lets us adapt the field mapping, Attio objects, task surfaces, and resync behavior to your actual ClickUp and Attio setup.