title: Azure B2C custom policy passwordless signin schema validation error
body: <p>I am using Azure B2C custom policy for passwordless signin following this <a href="https://github.com/azure-ad-b2c/samples/tree/master/policies/passwordless-email" rel="nofollow noreferrer">sample</a>.</p>
  <p>The &lt;<em><strong>BuildingBlocks</strong></em>&gt; section has the &lt;<em><strong>ClaimsTransformations</strong></em>&gt;.....&lt;/<em><strong>ClaimsTransformations</strong></em>&gt; which defines random password generation. To customize the UI for my login screens I have also added &lt;<em><strong>ContentDefinitions</strong></em>&gt; .... &lt;/<em><strong>ContentDefinitions</strong></em>&gt; inside &lt;<em><strong>BuildingBlocks</strong></em>&gt; section.</p>
  <p>Now I am getting a validation error when trying to upload the <em>TrustFrameworkExtensions_passwordless_only.xml</em> file saying  that the ---&gt; <em><strong>element &lt;<em><strong>BuildingBlocks</strong></em>&gt; has invalid child element &lt;<em><strong>ClaimsTransformations</strong></em>&gt;. List of possible elements expected: Localisation, DisplayControls</strong></em>.</p>
  <p>This is strange because in the reference schema ClaimsTransformations is also a valid element. Not idea why I am getting this error. Can anyone please help me with this issue?</p>