Safecracker not creating entries with correct url for Structure

Question

I am currently building a web app that allows users to create a list of their own contacts which are then stored as channel entries. This generally works fine however the Structure URLs are not being generated as expected.

I have created the form as below. The dynamic title is working and is being set on a simple jquery keyup handler. When I submit the form using ajax, the entry is created along with all the relevant data but rather than the entry being accessed at domain.com/channel/john-doe it is found directly at domain.com/john-doe.

I have gone as far as to use the Structure module's suggested additional tags:

<input type="hidden" name="structure_template_id" value="21" />
<input type="hidden" name="structure_parent_id" value="{structure:parent:entry_id}" />

but there was no joy and I simply experienced the exact same result. Any suggestions? Full code below (not including the additional structure fields).

{exp:safecracker channel="contacts" dynamic_title="[contact_name]" safecracker_head="no" include_jquery="no" return="safecracker/ENTRY_ID" json="yes" id="addContact"}

<input type="hidden" name="contact_list_designation" value="A" id="contact_list_designation"/>
<input type="hidden" name="contact_name">

<div class="content-bar bar light shiny top">
  <div class="section">
    <div class="center">
      <div>
        <div class="title">New Contact</div>
      </div>
    </div>
  </div>
</div>
<div class="grid-container fieldset-holder">
  <fieldset class="inline">
    <label class="grid-25">Type</label>
    <div class="grid-75">
      <div data-toggle="buttons-radio" class="buttonset cf block designation_radios">
        <div class="button grid-33 active-primary active"><span>A</span></div>
        <div class="button grid-33 active-primary"><span>B</span></div>
        <div class="button grid-33 active-primary"><span>C</span></div>
      </div>
    </div>
  </fieldset>

  <fieldset class="grid-50">
    <label>Firstname</label>
    <input type="text" name="contact_firstname">
  </fieldset>
  <fieldset class="grid-50">
    <label>Lastname</label>
    <input type="text" name="contact_lastname">
  </fieldset>
  <fieldset>
    <label>Company</label>
    <input type="text" name="contact_company">
  </fieldset>
  <fieldset>
    <label>Email</label>
    <input type="text" placeholder="[email protected]" name="contact_email">
  </fieldset>
</div>
{/exp:safecracker}

Answer 1

<input type="hidden" name="structure_parent_id" value="{structure:parent:entry_id}" />

Yup, this will definitely be required for this to work with Structure ... but is {structure:parent:entry_id} outputting something usable inside your Safecracker form? Check in your rendered page's source, looking at that hidden field. Otherwise, Structure won't know that you want this entry to be assigned to a parent.