ActionBasecampUpdated May 2026

How do I mark a Basecamp to-do as done?

Short answer: Drop the "Basecamp → Complete To-do" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Use this action All 4 Basecamp actions

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Project ID project_id	string	Required	The Project ID assigned by Basecamp. Find via the corresponding list/search operation in this app. Use the exact ID, not a name or label.
To-do ID todo_id	string	Required	—

Sample request

{
  "project_id": "{{trigger.project_id}}",
  "todo_id": "{{trigger.todo_id}}"
}

Returns

{
  "id": "{{inputs.todo_id}}"
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Complete To-do.

Any of these apps can fire this action as part of a workflow.

Google Sheets → Basecamp

2 Google Sheets triggers

HubSpot → Basecamp

18 HubSpot triggers

FAQ

Questions about Complete To-do.

What does the Complete To-do action do in Basecamp?

Transitions a to-do to the completed state. Assignees get the standard Basecamp completion notification. Useful for "external CI run finished green → mark the deployment to-do done" cascading workflows.

What inputs does Complete To-do require?

Required: Project ID, To-do ID. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Basecamp returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Complete To-do support batch operations?

Yes. Run Complete To-do inside a Loop node to process arrays. Tiny Command handles Basecamp's rate limits automatically so you don't have to throttle manually.

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