# 0783/2010/(ANA)DK - Author: European Ombudsman - Date: 2011-09-05T00:00+02:00[Europe/Paris] - [URL](https://www.ombudsman.europa.eu/en/digest/en/12187) --- Once an individual has exercised his/her right to appeal under a Call or under Article 90 of the Staff Regulations, it is good administrative practice expressly to inform individuals of the possibilities to challenge a decision excluding them from a competition. The possibilities of external challenge are the right to complain to the Ombudsman and the right to bring an action for annulment before the EU courts.