Concatenated tooltip - on a bubble plot (or anywhere)

Try this new code:

Emails included =
VAR _Emai1sInPeriodPerContact =
    SUMMARIZE (
        'Emai1s and Contacts',
        'Emails and Contacts '[contactid],
        'Emails and Contacts '[blc_subject],
        "How Many Emails", SUM ( 'Emai1s and Contacts'[Was Delivered] )
    )

VAR 
RETURN
    CONCATENEX (
        SUMMARIZE(
         FILTER (
            _Emai1sInPeriodPerContact,
            [How Many Emails] = 'Number of Emails'[Number of Emails Value]
        ), 'Emails and Contacts '[blc_subject])
          ,
        'Emails and Contacts '[blc_subject],
        ", "
    )