INSPECT ME!
CODE: <input type="hidden" id="uniqueId01-input-hidden" name="inputHidden" value="form data value">
<input type="hidden" id="uniqueId01-input-hidden" name="inputHidden" value="form data value">
CODE: <input type="hidden" id="uniqueId01-preferenceType" name="preferenceType" value="NWL">
<input type="hidden" id="uniqueId01-preferenceType" name="preferenceType" value="NWL">
IMPORTANT: when using the hidden input for newsletter "preferenceType", the <FORM> 'action' attribute determines which preference is being added: eg: action="/crm/signup-newsletter-submit/VSO", where VSO is the productId being added as a preference