How to send a unique invoice per fulfilment for multi fulfilment orders

[Sam1029039]

Trying to send fulfillment-specific PDF invoices via the standard Shopify shipping confirmation email. 

Right now, there’s no unique Liquid variable for fulfillment.id, fulfillment.name, or any other identifying reference that would let us isolate which specific fulfillment triggered the email.

Because of that, we can’t dynamically generate or link to fulfillment-specific documents — we’re stuck sending one merged PDF for all fulfillments, which causes confusion for customers receiving partial shipments. We freuqently have 10+ fulfilments for an order

does anyone know of anyway that this can be done? 

Ideally i assume this would be exposed as fulfillment.id (or any unique identifier) within the shipping confirmation notification’s Liquid context?

This would unlock:

Reliable per-fulfillment documents

Cleaner customer communication for multi-shipment orders. But this feature doesn't appear to exist? Surely there's a workaround somewhere?

Keen on everyone's thoughts.