Thank you for your feedback. SAP Marketing Cloud supports open email tracking (campaign analytics) including setting up campaigns with A/B testing. Customers can set up automated A/B testing to find out the most efficient email for campaign using Rate of Opened Messages or Unique Click Rate. The Sinch E-mail 365 service can be integrated with these features available through SAP Marketing Cloud.
We would be happy to connect with you and provide more information on this, or if you have any support issues or need want to report an issue, then please contact our Service Desk team: ESSupport.digitalinterconnect@sinch.com.
Some additional links about this topic are provided below for your reference:
https://help.sap.com/viewer/b88f770e4b7c4ecead5477e7a6c7b8f7/1808.500/en-US/2df599572c504f9291c2d56ce4161e83.html?q=open%20tracking
https://help.sap.com/viewer/b88f770e4b7c4ecead5477e7a6c7b8f7/1808.500/en-US/3ca064561611450ca3bfed1f9b37cd4b.html?q=open%20tracking
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