getMailingIdQueries the mailing ID (parameter mailingId) in Optimizely Campaign.📘NoteThe mailing must have been sent. Only then is a mail ID created. Type: long Parameters NameTypeValuesessionIdStringID of the sessionmailIdStringMail ID Return values Mailing ID Code structure long getMailingId(String sessionId, String mailId)Updated 4 days ago NextgetRecipientIdAsk AI