[keycloak-user] Set CreatedTimestamp

Hi, i'm currently trying to migrate users from an old system to keycloak (3.1.0). Im using the java implementation of the keycloak admin api to create the accounts, building a UserRepresentation and sending it to realm.users().create(). Now i have the problem, that i want to migrate the creation date of the accounts from the old system. Although i can set the createdTimestamp for the userRepresentation, it will not be stored in keycloak. Instead the current time is set for the createdTimestamp. Is there a way to modify the createdTimestamp? I understand that this is something you usually dont want to happen, but during migration of already existing accounts, it would be kind of handy. If there is no other way i have to use a custom attribute, storing the old creation date, but that means additional code to retrieve it.   Second question: What is the best way to iterate over all accounts in keycloak? Currently i'm using something like this: Integer userCount = keyCloakClient.realm(realmname).users().count(); int processed = 0; List<String> userIds = new ArrayList<>(); int fetchsize = 100; while (processed < userCount) {     keyCloakClient             .realm(realmname)             .users()             .search("", processed, fetchsize)             .stream()             //some filters             .forEach(user -> userIds.add(user.getId()));     processed += fetchsize; } If i put the fetchsize to big, i get problems processing the json response. But i'm worried that the result from the empty search will not be stable and i'll miss accounts.   regards zitrone