I think you will need to remove the 0 and make use of the repeat for and alias
Let's say you have 3 items, in the event data you would have: {{ event.extra.line_items.0.presentment_variant_title|default:'' }} {{ event.extra.line_items.1.presentment_variant_title|default:'' }} {{ event.extra.line_items.2.presentment_variant_title|default:'' }} Each variable corresponding to each item's presentment_variant_title
So you'll set your repeat for as: event.extra.line_items The alias as: item
And in the template, you'll use: {{ item.presentment_variant_title }}
I think you will need to remove the 0 and make use of the repeat for and alias
Let's say you have 3 items, in the event data you would have: {{ event.extra.line_items.0.presentment_variant_title|default:'' }} {{ event.extra.line_items.1.presentment_variant_title|default:'' }} {{ event.extra.line_items.2.presentment_variant_title|default:'' }} Each variable corresponding to each item's presentment_variant_title
So you'll set your repeat for as: event.extra.line_items The alias as: item
And in the template, you'll use: {{ item.presentment_variant_title }}