However you are loading your form to test, whether it be through an unsupported method or multiple times in a short period of time, you are triggering Cloudflare to challenge the t...
Marketo has introduced additional levels of security to further protect it's infrastructure from web based attacks. I suggest you use our supported Forms 2.0 APIhttps://developers....
That is a Program Status named "Sent". It's not indicative of whether or not someone was sent an email unless you set up Smart Campaigns to make it work that way. Most of your pe...
The numerical value is the ID of one of the records that failed to merge. There's probably an error generated by your CRM that is blocking the merge from completing but the UI doe...
The total size of your velocity scripts in the email is too large. It has to be smaller than 100,000 bytes. http://developers.marketo.com/email-scripting/ (at the bottom)