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Overview

Scheduling lets you run Workflow Applications automatically on a recurring basis using cron expressions. Instead of triggering workflows manually or waiting for user input, scheduled workflows execute at defined intervals — producing reports, syncing data, sending alerts, or performing any automated task your workflow defines.

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How Scheduling Works

  1. Define a schedule — Attach a cron expression to a Workflow App
  2. Automatic trigger — The scheduler fires at the specified interval
  3. Workflow execution — The workflow runs with predefined input variables
  4. Results storage — Execution results, logs, and outputs are stored for review
  5. Optional notification — Configure notifications for success, failure, or both

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Creating a Schedule

1

Open the Workflow App

Navigate to the Workflow App you want to schedule from your workspace dashboard.
2

Go to Scheduling

Click the Schedule tab in the application settings.
3

Add a Schedule

Click New Schedule and configure the following:
FieldRequiredDescription
NameYesA descriptive name for the schedule (e.g., “Daily Sales Report”)
Cron ExpressionYesStandard cron expression defining the execution interval
TimezoneYesThe timezone for schedule evaluation (e.g., Asia/Seoul, UTC)
Input VariablesNoPredefined inputs passed to the workflow at each execution
EnabledYesToggle to activate or deactivate the schedule
4

Save and Activate

Click Save. The schedule begins executing at the next matching interval.

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Cron Expression Reference

Cron expressions define when the schedule fires. Nadoo AI uses the standard 5-field cron format. 
┌───────────── minute (0-59)
│ ┌───────────── hour (0-23)
│ │ ┌───────────── day of month (1-31)
│ │ │ ┌───────────── month (1-12)
│ │ │ │ ┌───────────── day of week (0-6, Sunday=0)
│ │ │ │ │
* * * * *

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Common Examples

ExpressionDescription
0 9 * * *Every day at 9:00 AM
0 9 * * 1-5Weekdays at 9:00 AM
*/30 * * * *Every 30 minutes
0 */6 * * *Every 6 hours
0 0 1 * *First day of each month at midnight
0 8 * * 1Every Monday at 8:00 AM
0 0 * * 0Every Sunday at midnight
0 9,18 * * 1-5Weekdays at 9:00 AM and 6:00 PM

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Cron Builder UI

For users who are not familiar with cron syntax, Nadoo AI provides a visual Cron Builder that lets you construct expressions through a point-and-click interface. The Cron Builder supports:
  • Preset intervals — Every minute, hourly, daily, weekly, monthly
  • Custom time selection — Pick specific hours, minutes, and days
  • Preview — Shows the next 5 scheduled execution times before saving
  • Validation — Warns about expressions that would execute too frequently
Use the Cron Builder for quick setup, then switch to the raw expression editor for advanced patterns like “every other Tuesday” or “first and third Monday of each month.”

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Input Variables

Each scheduled execution can receive predefined input variables that the workflow uses during processing. These replace the user input that would normally come from a chat message or API call. 
{
  "report_type": "weekly_summary",
  "date_range": "last_7_days",
  "recipients": ["team@example.com"],
  "format": "pdf"
}
Variables are defined in the schedule configuration and remain constant across executions. For dynamic values (e.g., current date), use the workflow’s built-in variable functions.

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Execution History

Every scheduled execution is recorded in the execution history with full details.

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History View

FieldDescription
Execution IDUnique identifier for the run
Statussuccess, failed, running, or cancelled
Started AtTimestamp when execution began
DurationTotal execution time
Triggerscheduled (cron) or manual
OutputThe workflow’s final output
LogsNode-by-node execution log with intermediate results

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Viewing Execution Details

Click any execution in the history to see:
  • Node execution timeline — Visual representation of which nodes ran and in what order
  • Input/output per node — What each node received and produced
  • Token usage — LLM tokens consumed during the run
  • Error details — Full error message and stack trace for failed runs

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Monitoring and Alerts

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Health Dashboard

The scheduling dashboard shows:
  • Upcoming executions — Next scheduled runs across all workflows
  • Recent history — Latest executions with status indicators
  • Success rate — Percentage of successful runs over time
  • Average duration — Trend of execution times

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Failure Notifications

Configure notifications to be alerted when a scheduled execution fails:
ChannelDescription
EmailSend failure alerts to specified email addresses
SlackPost failure alerts to a Slack channel
WebhookSend a POST request to a custom webhook URL
Failed scheduled executions are not automatically retried. Review the execution logs, fix the issue, and either wait for the next scheduled run or trigger a manual execution.

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Use Cases

Schedule a workflow that queries your database, generates an AI-powered summary, and emails it to stakeholders every morning.Example: 0 8 * * 1-5 — Generate and send a daily business metrics report at 8:00 AM on weekdays.
Schedule a workflow that pulls data from external APIs, processes it with AI, and updates your knowledge base.Example: 0 */4 * * * — Sync product catalog from an external system every 4 hours.
Schedule a workflow that monitors metrics, detects anomalies using AI, and sends alerts to your team.Example: */15 * * * * — Check system metrics every 15 minutes and alert on anomalies.
Schedule a workflow that generates content drafts, social media posts, or newsletter summaries on a recurring basis.Example: 0 9 * * 1 — Generate a weekly content calendar every Monday at 9:00 AM.
Schedule a workflow that audits data, documents, or processes against compliance rules and generates reports.Example: 0 0 1 * * — Run a monthly compliance audit on the first of each month.

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Managing Schedules via API

# List all schedules for a workflow
GET /api/v1/applications/{app_id}/schedules

# Create a new schedule
POST /api/v1/applications/{app_id}/schedules
{
  "name": "Daily Report",
  "cron_expression": "0 9 * * *",
  "timezone": "Asia/Seoul",
  "input_variables": {"report_type": "daily"},
  "enabled": true
}

# Update a schedule
PUT /api/v1/applications/{app_id}/schedules/{schedule_id}

# Delete a schedule
DELETE /api/v1/applications/{app_id}/schedules/{schedule_id}

# Trigger a manual execution
POST /api/v1/applications/{app_id}/schedules/{schedule_id}/trigger

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Next Steps

Workflow App

Build the workflows that power your scheduled processes

Channel App

Deploy agents to messaging platforms

Real-time Streaming

Monitor workflow execution with SSE events

Self-Hosting

Deploy the scheduler infrastructure