Populate Custom Fields and capture in submission using Custom HTML/Javascript Logic

Auto populating the existing custom field in forms / Survey using custom HTML/Javscript and later saved in submisison is simple and straightforward. 

Retrieve the Custom Field ID:

   – Go to the Preview of the form.

   – Right-click on the page and select ‘Inspect.’

   – Select the mouse pointer tool.

   – Click on the “Custom Field.”

   – Copy the ID from the name and ID properties.

 Example:

If you created a custom field named `xxTrustedFormCertUrl`, follow the above steps to get its ID.

Note:  myData  is just for example. In the customer custom HTML/Javascript code. Customer have to figure it out where is the captured data and replace the myData  

document.getElementsByName('customFieldId')[0].value = myData;    
document.getElementsByName('customFieldId')[0].dispatchEvent(new Event("input"));