How to Add Custom Checkout Field in the Address Block
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4. Testing and Debugging
- Frontend Validation: Make sure the custom field data is being captured correctly in the JavaScript event and added to the form submission.
- Backend Validation: Use
error_log()or similar methods to log and inspect the submitted data in your PHP hooks to confirm it’s passed correctly.
Key Points
- JavaScript Filter: Use JavaScript to register custom checkout fields in WooCommerce Blocks.
- Field Value Submission: Capture the custom field data and pass it along with the checkout submission.
- Backend Handling: Use WooCommerce’s PHP hooks to validate and save the custom field data.
By following this approach, you should be able to add a custom checkout field in the address block, pass it from the frontend to the backend, and handle it appropriately in WooCommerce. Let me know if you need further assistance!
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