We sent out an A/B test email with the following subject line:
%%[IF NOT EMPTY(NM_FIRSTNAME) AND LENGTH(NM_FIRSTNAME) > 1 THEN ]%%
%%NM_FIRSTNAME%%, s
%%[ ELSE ]%%S
%%[ ENDIF ]%%ee your super in Product Name
The email sent without issue, however when the 'winning' email was sent, then the email failed to send.
After investigation it appears to be an AMPscript related issue, as we can see that the subject line changed to:
%%[IF NOT EMPTY(NM_FIRSTNAME) AND LENGTH(NM_FIRSTNAME) > 1 THEN ]%%
%%NM_FIRSTNAME%%, s
%%[ ELSE ]%%S
%%[ ENDIF ]%%ee your super in Product Name
Note the >
character replacement. Has anyone seen this before and if so, do you know of a workaround?
Refer to screenshots below from Send Tracking pages.
A/B Test Send
Winning Email
Note no emails were sent.