Our organisation is trying to connect our oem that sits on salesforce platform to the marketing cloud. The Marketing cloud connector is installed and set up is completed. We are now testing email sends..However we are encountering issues sending emails to test the connection. We tried sending several emails using a report created in eom and an email created in content in sfmc. All email sends are failing with the following status error "cannot retrieve data". Not sure what we are missing since the installation and set up was followed to the t? Test deliverability was completed successfully... Any ideas?