I've tried multiple variations on

transaction.salesorder.linkedtrackingnumbers

and

transaction.createdfrom.linkedtrackingnumbers

but nothing seems to work.

i’m not sure you can pull sales order fields from the itemfulfillment record in freemarker without a custom field on the itemfulfillment record, the only tracking number i see on our fulfillment records’ xml is

packagetrackingnumber

under the

package

sublist

Hope this helps:<div style="background-color: #ebf5f7; padding: 16px; width: auto;">Tracking information: <a href="${salesorder.trackingLink}" style="color: #087ca6; text-decoration: none;">${salesorder.linkedtrackingnumbers}</a></div> </div>