Change Gravity Form Field IDs

1) Open up console and paste in following…

gwChangeFieldId = function( currentId, newId ) {

	for( var i = 0; i < form.fields.length; i++ ) {
		if( form.fields[i].id == currentId ) {
			form.fields[i].id = newId;
			jQuery( '#field_' + currentId ).attr( 'id', 'field_' + newId );
			if( form.fields[i].inputs ) {
				for( var j = 0; j < form.fields[i].inputs.length; j++ ) {
					form.fields[i].inputs[j].id = form.fields[i].inputs[j].id.replace( currentId + '.', newId + '.' );
				}
			}
			return 'Success!';
		}
	}

	return 'Failed.'
}

Then paste in the following to update the IDs (current ID is first parameter, desired ID is the second

gwChangeFieldId( 4, 12 );

Finally, save your updates 👍🏼

Kudos to: https://gravitywiz.com/changing-your-gravity-forms-field-ids/