hi folks, I get hundreds of these error messages during authoring and I don't even use experience fragments! I tried to get rid of them by adding the service user mapping for experience-fragments-service via the console configMgr, which worked fine. However my attempts to do it via a conf file failed. The package deployed fine, but only some other pre-existing experience-fragments user mappings showed up in the system console, and the error messages resumed. Maybe it is because it is an internal feature that I can't add user mappings for it via the conf files ? Anyone know how to get rid of the messages? thanks!
[EventAdminAsyncThread #10] com.adobe.cq.xf.impl.adobetarget.TargetVariationModificationListener Cannot derive user name for bundle com.adobe.cq.cq-experience-fragments  and sub service experience-fragments-service
Somebody might have accidentally deleted the configuration for the service user by clicking delete in the /system/console/configMgr. I would suggest you add the missing mappings manually again via /system/console/configMgr UI in the affected environment.
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