Error codes ยท EBA technical checks (reception)
103: ZIP consistency (checksum, unzips correctly).
Rejects the file also shown as EBA.103
Official text
ZIP consistency (checksum, unzips correctly).
How it appears in feedback
Failed reception check 103: Invalid ZIP file, instance filename [filename] not matching zip filename [name of zip file]Failed reception check 103: Invalid ZIP file root folder [name of root folder] is not found in ZIP file [name of zip file]Failed reception check 103: Invalid ZIP file, instance file extension is missing in zip file [name of zip file]
What triggers it
The zip cannot be used as a report package: typically the root folder inside the zip is not named exactly like the zip (minus .zip), the root folder or the 'reports'/'META-INF' subfolders are missing, the file was double-zipped, or the .zip extension is wrong. Most common non-content rejection; AFM and CBI both list it.
The zip could not be unpacked, or it contains files that are not part of a report package: operating-system junk (__MACOSX, .DS_Store, Thumbs.db), a .txt or .xlsx file, a second zip, a PDF.
How to fix it
Build the package as <name>.zip containing a single folder <name> (same string, uppercase LEI) with exactly two subfolders 'reports' and 'META-INF' (case-sensitive). Do not zip the folder's parent, do not double-zip, and avoid tools that add hidden folders (e.g. __MACOSX).
Zip only the package folder. On macOS use the command line (zip -r -X) or remove the __MACOSX and .DS_Store entries. Keep only reports/*.csv, reports/report.json and META-INF/reportPackage.json.
Sources
- EBA, Overview of technical checks, validation rules and business checks to be applied by the EBA for RoI reporting (updated 28 April 2025), xlsx (read 2026-10-31)
- ESAs/EBA, Observations from reporting of RoI to the ESAs - key common issues identified (16 Apr 2025, updated 16 May 2025), slides (read 2026-10-31)
- CSSF, Guidance for interpretation and resolution of ESA error messages related to the DORA register, v1.0, 15 May 2025 (read 2026-10-31)
- Central Bank of Ireland, Guide to Submitting DORA Registers of Information on the Central Bank of Ireland Portal (PDF dated 23 Feb 2026, 93 pp.) (read 2026-10-31)
- AFM, Q&A-sessie DORA-informatieregister (March 2026 session; PDF, Dutch) (read 2026-10-31)