DORA – Publication by the CSSF of a guide providing detailed information related to the error and warning messages raised by the ESAs as a result of the validation checks they perform on the received registers of information

The CSSF is issuing the present guide following the request from the market to receive more detailed information related to the error and warning messages raised by the ESAs as a result of the validation checks they perform on the received registers of information.

This document is based on the current list of validation checks (last updated on 28 April 2025) performed by the ESAs.

It provides, for the most frequently failed validation checks, i.e. for the most frequent ESA error/warning messages received by financial entities, a description of the issues and instructions on how to solve them.