According to the Core Day-Ahead Capacity Calculation Methodology (DA CCM) and the First amendment, the CCC with the support of the Core TSOs shall draft and publish an annual report, as per article 27(4)
Additionally, according to Article 26(4), Core TSOs shall provide to the CCC detailed reasons for Data Quality Issues (published in the Monthly Reports), as well as an action plan to correct past failures and prevent future failures. This information shall also be included in the annual report.
In the attachments section below, the annual reports can be found. The reports include a main document with the name "Core DA CC Annual Report", and other supporting files that are referenced from the main document.