Keep Caldera Forms syncing to Google Sheets
Caldera Forms is no longer maintained, but your existing forms still work. Use LeadToSheet to continue syncing submissions to Google Sheets without migrating to a new plugin.
CMS: WordPress
Overview
Caldera Forms was a popular grid-based form builder that was officially sunset and archived. While no longer receiving updates, many WordPress sites still run Caldera Forms and rely on its conditional logic and unique grid layout system. As third-party Caldera add-ons lose support, LeadToSheet offers a reliable way to keep capturing submissions in Google Sheets without depending on deprecated integrations.
Implementation checklist
- 1
Install the LeadToSheet SDK on your legacy site
Add the script tag to your theme footer or use a code injection plugin. Caldera Forms uses AJAX submission by default, and LeadToSheet hooks into the jQuery AJAX success event that Caldera relies on.
LeadToSheet snippet
<script src="https://cdn.leadtosheet.com/sdk.min.js" data-client="YOUR_CLIENT_KEY"></script> - 2
Verify Caldera Forms is still functional on your site
Before setting up LeadToSheet, confirm your Caldera Forms are still rendering and accepting submissions. Check for PHP errors in your error log, as newer PHP versions may cause compatibility issues with the archived plugin.
Tip: If you are on PHP 8.1+, check for deprecation warnings. Caldera Forms was developed for PHP 7.x and may produce notices that do not break functionality but should be monitored.
- 3
Test the AJAX submission flow
Submit a test entry and watch your browser's network tab for the AJAX request. If the submission succeeds and you see the Caldera Forms success message, LeadToSheet will have captured the data. Check your Google Sheet for the new row.
Customization ideas
Create a backup spreadsheet for migration planning
As you plan your eventual migration away from Caldera Forms, use the Google Sheet populated by LeadToSheet as a reference for your form field structure. It documents every field name, type, and data pattern, making it easier to rebuild forms in a new plugin.
Maintain grid-based form data after migration
Caldera's unique grid layout system means form fields may have unusual positioning. LeadToSheet captures field values regardless of layout, so even after you migrate to a new form builder, your historical data in Sheets remains intact and accessible.
Monitor form reliability with sheet timestamps
Since Caldera Forms is unsupported, forms may occasionally break after WordPress core or PHP updates. Use the timestamps in your Google Sheet to detect submission gaps that indicate a silent form failure.
Troubleshooting
Caldera Forms AJAX returning errors on newer PHP versions
Caldera Forms may throw PHP deprecation notices on PHP 8.0+ that corrupt the AJAX response. If LeadToSheet is not capturing submissions, check your PHP error log for Caldera-related warnings. Consider pinning your PHP version or applying community patches from the Caldera Forms GitHub archive.
Conditional logic fields not submitting correctly
Caldera Forms' conditional logic relies on jQuery that may conflict with WordPress updates. If hidden fields are not toggling correctly, the submitted data may be incomplete. Test conditional paths manually and verify the field values in your browser's developer tools before checking Sheets.
jQuery dependency issues after WordPress update
WordPress 5.6+ changed jQuery handling, which can affect Caldera Forms. If forms stop working entirely after a WordPress update, check the browser console for jQuery errors. The wp-jquery-migrate plugin or Enable jQuery Migrate Helper plugin can restore compatibility.
Frequently asked questions
- Should I migrate away from Caldera Forms?
- Eventually, yes. Caldera Forms no longer receives security patches or compatibility updates. However, if your forms are working today, LeadToSheet lets you continue capturing data while you plan a migration at your own pace.
- Will LeadToSheet still work when I eventually replace Caldera Forms?
- Absolutely. LeadToSheet is form-plugin-agnostic. When you switch to a new builder, your existing sheet data remains, and LeadToSheet will capture the new plugin's submissions with no changes to the script tag.
- Can I export my Caldera Forms entries before migrating?
- Caldera Forms has a built-in CSV export, but it may break on newer PHP versions. LeadToSheet provides a live Google Sheet that serves as a continuous export. All submissions are already there - no manual export needed.