Returns every recorded attribution interval for the session, current interval first (effectiveFrom descending), so element 0 is what the session is attributed to now.

With a metering API key you get ticketId, ticketTitle and effectiveFrom. With a full-access API key or a signed-in session you also get who made each change (apiKeyId, createdBy, modifiedBy, updated) and subscriberEmail.

The reason note is shown only to the developer it belongs to and to your Account Administrators (ROLE_TENANT_ADMIN); everyone else gets null for that field, so a null reason can mean the note is hidden from you or that none was recorded.