Last Updated on May 22, 2025 by Arnaud Collignon Important: Error messages lead to register rejection, while warnings do not, but both must be addressed for successful submission. 📑 Common ESA Error and Warning Messages 🔐 Rule Code 103 – Invalid ZIP File Type: ❌ ErrorZIP file structure issues, such as mismatched folder names or … Continue reading DORA errors : RoI Register Error Message Guidance