# Special service

### About Special Service Category

The Special Service category covers specific requirements for unique markets or regulatory processes. Currently, it includes guidance on updating IOSS information for EU orders - explaining what IOSS is, how it works, and why it is important for VAT compliance and smooth cross-border delivery.

This article also walks you through how to update IOSS details correctly, along with practical tips and best practices to avoid customs delays or unexpected charges. It ensures your EU shipments are handled properly and remain compliant with applicable regulations.

### Related Resources <a href="#related-resources" id="related-resources"></a>

* [How to update IOSS information for EU's orders](/shipping-and-delivery/special-service/how-to-update-ioss-information-for-eus-orders.md)


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