Script Block
What it does: Run custom code within your workflow to transform data, perform calculations, or implement custom logic.
In simple terms: The Script block is your Swiss Army knife. When you need to do something specific that other blocks can't handle - like complex calculations, data formatting, or custom validations - you can write a small script to do exactly what you need.
When to Use This
Use Script blocks when you need:
- ✅ Custom data transformations
- ✅ Complex calculations
- ✅ Format or restructure data
- ✅ Validate input in custom ways
- ✅ Logic not available in other blocks
Example: Calculate a custom discount based on customer loyalty tier and purchase history, then format the result for display.
Key Features
- Full Programming Power: Write real JavaScript code
- Access Workflow Data: Use variables from your workflow
- Return Values: Pass results to other blocks
- Error Handling: Catch and handle issues gracefully
How Scripts Work
- Receive data: Access workflow variables and inputs
- Process: Run your custom logic
- Return results: Pass values to the next block
Setup Guide
Step 1: Open the Script Editor
Add a Script block to your workflow and click to open the code editor.
Step 2: Write Your Logic
Write your custom code to process the data you need.
Step 3: Return Results
Make sure your script returns the values you need for the next steps of your workflow.
Step 4: Test
Run your workflow to verify the script works correctly.
Common Use Cases
Data Formatting
Convert dates to different formats, format phone numbers, or structure addresses consistently.
Custom Calculations
Calculate taxes, discounts, shipping costs, or any business-specific formulas.
Data Validation
Check if values meet your business rules before proceeding.
String Manipulation
Extract parts of text, combine strings, or clean up user input.
Array Operations
Filter lists, sort data, or aggregate values from collections.
Object Transformation
Restructure data from one format to another for API calls or storage.
Available Data
Within your script, you can access:
- Workflow variables: Data from previous blocks
- Input parameters: Values passed to the script
- Built-in functions: Standard programming utilities
What You Get Back
After the script runs:
- Return value: Whatever your script returns
- Success status: Whether the script completed without errors
- Execution time: How long it took to run
Tips for Success
- Keep it simple - Break complex logic into multiple scripts if needed
- Handle edge cases - What if a value is empty or unexpected?
- Test thoroughly - Try different inputs to catch issues
- Add comments - Explain what your code does for future reference
- Use descriptive names - Clear variable names make code easier to understand
Troubleshooting
| Problem | Likely Cause | Solution |
|---|---|---|
| Script errors | Syntax or logic issue | Check error message for details |
| Wrong output | Logic error | Debug by logging intermediate values |
| Variable not found | Typo or missing data | Verify variable names match exactly |
| Timeout | Script running too long | Optimize code or break into smaller parts |
| Unexpected null | Missing data | Add checks for empty values |
Best Practices
- Validate inputs - Check that expected data exists before using it
- Return clean data - Format output consistently
- Handle errors - Don't let unexpected values crash your workflow
- Keep scripts focused - One script, one purpose
- Document your logic - Comments help future you understand the code