Hi MC API team,
I recently integrated 3dcart and MainChimp and mailing lists are working very well but someone conversion tracking (ecommerce 360) is not showing any results (while there were definite conversions from the newsletter). I can see in 3dcart orders with reference codes that start with mc_cid:xxxx so the tracking from the newsletter to the checkout is working. The issue seems to be passing info from 3dcart back to MailChimp via API? MC tech support told me:
"I'm seeing a few failed "ecommOrderAdd" calls coming from 3dcart that look to be failing with the response of "(330) Invalid_EcommOrder". "
Would you be able to look into this?
Thank you very much for your help in advance.