Put conditional in email subject

[Uni-Trend]

Hi,

Is there any way to put a conditional call a for metafield into an email subject line? 

For instance, if a customer paid with a PO number, I would want to make the subject:

{%- if order.metafields.custom.customer_po !=blank %} A shipment from your {{ order.metafields.custom.customer_po }} is on the way {% else %} A shipment from order {{ name }} is on the way  {% endif %}

So, if there's something in the field, it would show one subject message, if it's blank, it show the standard message. 

Thanks,

Pete

[BlackCro]

Hi Pete, 

Have you tried this using the edit email templates and it didn't work? If so try removing the order. from the declarations as this isn't required.

There is more info available at the documentation link below. 

https://help.shopify.com/en/manual/orders/notifications/email-variables

Hope this helps

Simon