Good morning, Although instructions have been sent to those in charge of data entry to be vigilant, in particular regarding the format of the dates (dd/mm/yyyy), errors remain. Unfortunately, these errors can prevent access to the group, including for administrators. It would therefore be desirable to be able to keep the field in “Date” format (rather than converting it into “Short Text”), while setting up an alert message that is displayed when entered. This would immediately inform the person concerned that an error has occurred in the format and that it must be corrected before the data is saved. Thanks in advance.