Forums / Cotonti / Support / User information

Use a conditional expression in header.tpl of your theme:

<!-- IF {PHP.usr.id} > 0 AND ( !{PHP.usr.profile.user_location} OR !{PHP.usr.profile.user_birthday} OR !{PHP.usr.profile.user_gender} ) -->
<div class="error">Update your account information</div>
<!-- ENDIF -->