Form with Dynamic Dropdown Field

Form with Dynamic Dropdown Field automates form submissions by dynamically updating dropdown options from Google Sheets, ensuring real-time data accuracy. This 16-node workflow simplifies data collection, enhances user experience, and integrates seamlessly with various tools, allowing for efficient data management and processing.

7/8/2025
16 nodes
Complex
manualcomplexn8nformtriggergooglesheetstriggerexecuteworkflowsticky notegooglesheetsadvanced
Categories:
Complex WorkflowManual TriggeredData Processing & AnalysisBusiness Process Automation
Integrations:
N8nFormTriggerGoogleSheetsTriggerExecuteWorkflowSticky NoteGoogleSheets

Target Audience

This workflow is ideal for:
- Form Creators: Individuals or teams looking to create dynamic forms with dropdown options that update automatically.
- Data Analysts: Professionals who need to gather data from forms and store it in Google Sheets for analysis.
- Project Managers: Users who want to streamline their workflow processes and automate data collection from various sources.
- Developers: Those interested in integrating n8n with other applications to create automated workflows.

Problem Solved

This workflow addresses the challenge of maintaining up-to-date dropdown options in forms. By integrating Google Sheets as a data source, it ensures that users always have access to the latest values without manual updates. This reduces errors and saves time during form submissions.

Workflow Steps

  • On Form Submission: The workflow is triggered when a form is submitted.
    2. Get All Values: It retrieves the latest dropdown values from a specified Google Sheet.
    3. Format to 'Values': The retrieved data is formatted to match the required structure for dropdown options.
    4. Write JSON: It constructs a JSON object that defines the dropdown field with the latest values.
    5. Replace Values: The workflow updates the existing form's dropdown options with the new values.
    6. Update Workflow: Finally, the updated workflow is saved, ensuring that the form reflects the latest dropdown options for future submissions.

    • Customization Guide

    Users can customize this workflow by:
    - Changing the Form Fields: Modify the formFields section in the On form submission node to add or remove fields as required.
    - Updating the Google Sheets Source: Change the documentId and sheetName parameters in the Get all values node to point to different sheets or documents.
    - Adjusting Polling Times: Modify the pollTimes setting in the Google Sheets Trigger node to change how frequently the workflow checks for updates.
    - Editing Dropdown Options: Update the logic in the Write JSON node to alter how dropdown options are formatted or filtered based on specific criteria.