Metadata are data common to all experimental sites. Therefore, the update must be done centrally by sending an email to Annick Battais. Please indicate the list name and the nature of the modification (modification of everything of just a part of an existing element, creation of a new element…)
For instance, if the data that you want to insert concern a parameter not yet registered in the parameters list, you should ask for the creation of this parameter before inserting the data in the database.