If you have already validated your application, you will no longer be able to edit it. You can add a supporting document explaining the wrong date in the application form (see “Upload supporting documents” in your EPSO account). 

If you have not yet validated your application, you can still edit it. Don’t forget to validate your application before the deadline (14/01/2025). 

If you applied for the wrong language competition, you must delete your application and start a new one. This is, however, only possible if you have not yet validated your application.