Subflows

Input: Customer email
Process: Lookup company, get industry, find contact info
Output: Enriched customer object

Input Node (customer_email)
    ↓
API Request (lookup company by email domain)
    ↓
API Request (get company industry)
    ↓
API Request (get additional contacts)
    ↓
Compose Text (format enriched data)
    ↓
Output Node (enriched_data)

Input Node Configuration:
- Name: customer_email
- Type: Text
- Required: Yes
- Default: (optional, for testing)

Input Node 1: customer_email
Input Node 2: company_name
Input Node 3: industry

Output Node Configuration:
- Name: enriched_customer
- Connected to: Final processing node

Output Node 1: customer_data
Output Node 2: company_data
Output Node 3: confidence_score

Invoke Subflow Node Inputs:
├─ customer_email (connect data source)
├─ company_name (connect data source)
└─ industry (connect data source or leave empty for optional)

Invoke Subflow Node Outputs:
├─ enriched_customer (connect to downstream node)
├─ company_data (connect to downstream node)
└─ confidence_score (connect to downstream node)

Parent result pool: {node1: "A", node2: "B"}

Subflow result pool: {subflow_node1: "X", subflow_node2: "Y"}

Parent Workflow:
List of Customers
    ↓
Invoke Subflow (Enrich Customer) - iterates per customer
    ↓
List of Enriched Customers
    ↓
Write to Database

Parent Workflow:
Document Input
    ↓
Invoke Subflow (Extract Data)
    ↓
Invoke Subflow (Validate Data)
    ↓
Conditional (check validation result)
    ├─ Valid: Invoke Subflow (Transform Data)
    └─ Invalid: Send to review
    ↓
Output

Parent Workflow:
Request Input
    ↓
Switch Node (check request type)
    ├─ Type A: Invoke Subflow (Process Type A)
    ├─ Type B: Invoke Subflow (Process Type B)
    └─ Type C: Invoke Subflow (Process Type C)
    ↓
Consolidate Outputs

Parent Workflow:
Input
    ↓
Loop (max 3 iterations)
    ├─ Invoke Subflow (Risky Operation)
    ├─ Conditional (check success)
    │   ├─ Success: Exit loop
    │   └─ Failure: Continue loop
    └─ (retry with different parameters)

Parent Workflow:
Input
    ├─ Invoke Subflow (Process A) ┐
    ├─ Invoke Subflow (Process B) ├─ Execute in parallel
    └─ Invoke Subflow (Process C) ┘
         ↓
    Gather Results
         ↓
    Output

Main Workflow
    ↓
Invoke Subflow A
    ↓
Invoke Subflow B (inside Subflow A)
    ↓
Invoke Subflow C (inside Subflow B)

Subflow Node X fails
    ↓
Invoke Subflow Node marks itself as errored
    ↓
Parent workflow stops (unless continue-on-error enabled)

Parent Workflow:
Input
    ↓
Invoke Subflow (continue on error: true)
    ↓
Conditional (check if output is empty)
    ├─ Success: Continue normal flow
    └─ Error: Handle error case

Error: Node "API Request" in subflow "Enrich Customer" failed
Reason: API rate limit exceeded

Subflow:
Input
    ↓
Extract Data
    ↓
Human in the Loop (review and approve)
    ↓
Process Approved Data
    ↓
Output

List of Items
    ↓
Invoke Subflow (with HITL) - iterates per item
    ↓
(workflow pauses for each HITL task)
    ↓
Continues after all reviews complete

List of 100 customers → Invoke Subflow → List of 100 enriched customers
(processes 10 at a time in parallel by default)

Input Nodes (customer_email, company_name, plan_tier)
    ↓
Conditional (check if email already exists)
    ├─ Exists: Return error
    └─ New: Continue
    ↓
API Request (create user account)
    ↓
API Request (create company)
    ↓
Conditional (check plan tier)
    ├─ Free: Skip provisioning
    ├─ Pro: Provision standard resources
    └─ Enterprise: Invoke Subflow (Enterprise Setup)
    ↓
Email Node (send welcome email)
    ↓
Slack Node (notify team)
    ↓
Output Nodes (customer_id, account_status, welcome_email_sent)

CSV Upload (customer list)
    ↓
CSV to List
    ↓
Invoke Subflow (Onboard Customer) - iterates per row
    ↓
Filter List (successful onboardings)
    ↓
Generate Report (summary of onboarded customers)
    ↓
Email Report to Admin

Document Upload
    ↓
Invoke Subflow (Extract Metadata)
    ↓
File to Text
    ↓
Invoke Subflow (Classify Document)
    ↓
Conditional (confidence > 80%)
    ├─ High Confidence: Invoke Subflow (Index Document)
    └─ Low Confidence: Human Review → Manual Classification → Invoke Subflow (Index Document)
    ↓
Notification (document processed)