{% assign checkinperson = Person.Id | PersonById %}

{% capture usedmobile %}
    {[ usedmobilecheckin primaryaliasid:'{{ checkinperson.PrimaryAliasId }}' ]}
{% endcapture %}

{% if usedmobile contains '0' %}
    {{- 'insert QR code ZPL from step 2 here' -}}
{% endif %}