IOSS, taxes and shipping manifests

Shopify Partner
3 0 1


We're creating an app for IOSS and need to find a way to confirm that shop admins has set the correct setting for Shipping into the EU. Which API can I use for this? Is the IOSS number included in the manifest to the 3PL? Also, this information should be in any object received in the webhooks regarding the fulfillment but I cannot find it.


Anyone has an idea?




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