Dynamic Dropdown Form with Automated Updates
detail.loadingPreview
This workflow creates a powerful web form with a dynamically updating dropdown field. It automatically pulls options from a Google Sheet, ensuring your form always offers the latest choices without manual intervention.
About This Workflow
This n8n workflow revolutionizes how you manage data collection with dynamic forms. It features a web form where a critical dropdown field automatically populates its options directly from a Google Sheet. Instead of manually updating form configurations, this solution periodically fetches new data, formats it correctly, and updates the live form in n8n. This ensures accuracy and saves significant time. Whether you're managing product lists, service options, or departmental choices, your users will always see the most current selections, streamlining operations and improving data integrity for any process that relies on up-to-date dropdown data.
Key Features
- Dynamic Dropdown Population: Automatically fetch and update dropdown options in your n8n form from external data sources.
- Google Sheets Integration: Seamlessly connect to Google Sheets as a primary data source for your dropdown values.
- Self-Updating Form Logic: The workflow intelligently retrieves its own definition, injects new dropdown options, and then updates itself, all within n8n.
- Customizable Data Source: Easily swap Google Sheets for any other data source (API, database, etc.) to power your dropdowns.
- Simplified Form Management: Eliminate manual form updates, ensuring your forms always display the most current and relevant options.
How To Use
- Configure Google Sheets Trigger: Update the
documentIdandsheetNameparameters in the 'Google Sheets Trigger' node to point to your specific Google Sheet. Your sheet should contain the data you want to use for dropdown options. - Prepare Data for Dropdown: The 'Write JSON' code node expects an input item with a property named
value. If your Google Sheet column is named differently (e.g., 'Product Name'), you will need to add a 'Set' node immediately after the 'Google Sheets Trigger' to rename your data column tovalue. - Customize Form Fields: In the 'On form submission' node, personalize the
formTitleand add or modify other form fields as required. Ensure at least one field is set todropdowntype, as this is where the dynamic options will be injected. - Set Update Frequency: Adjust the 'pollTimes' parameter within the 'Google Sheets Trigger' node to define how often your dropdown options should be refreshed from the source.
- Process Form Submissions: The 'Execute Workflow' node (connected to 'On form submission') triggers the processing of the submitted form data. By default, it re-executes the current workflow (
$workflow.id). You can modify this to trigger a separate workflow if your processing logic is extensive. - Activate Workflow: Save and activate the workflow. Remember to set the workflow to 'production mode' for full testing and live usage, as mentioned in the sticky note.
Apps Used
Workflow JSON
{
"id": "8708d6c9-f591-45ce-87e9-1aa2c7b49f24",
"name": "Dynamic Dropdown Form with Automated Updates",
"nodes": 28,
"category": "Operations",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
Get This Workflow
ID: 8708d6c9-f591...
About the Author
Crypto_Watcher
Web3 Developer
Automated trading bots and blockchain monitoring workflows.
Statistics
Related Workflows
Discover more workflows you might like
Instant WooCommerce Order Notifications via Telegram
When a new order is placed on your WooCommerce store, instantly receive detailed notifications directly to your Telegram chat. Stay on top of your e-commerce operations with real-time alerts, including order specifics and a direct link to view the order.
On-Demand Microsoft SQL Query Execution
This workflow allows you to manually trigger and execute any SQL query against your Microsoft SQL Server database. Perfect for ad-hoc data lookups, administrative tasks, or quick tests, giving you direct control over your database operations.
Automate Getty Images Editorial Search & CMS Integration
This n8n workflow automates searching for editorial images on Getty Images, extracts key details and embed codes, and prepares them for seamless integration into your Content Management System (CMS), streamlining your content creation process.