Automatically pick on-demand printer for EU market

[Nicolagypsicola]

Hi everyone; new here so apologies if similar questions have been asked. I'm a photographer based in the US and I've recently opened my online store. My clientele is evenly slept between US and EU, while for US I rely on a local printer and ship it on my own, my EU customer have been complaining that the cost of shipment to EU was too high.

To work around the issue I've decided to use and on-demand service based in EU that would take care of printing and shipping on my behalf, as they have a Shopify app that I can easily connect to my store.

Now my question is, how can I ensure that when an EU user select a photo they got defaulted to the on-demand service reflecting cost & shipping for EU market?