In the Email Experience Manager (EXM), when a message is sent in the non-default language, the following error might appear in the logs:
ERROR [SentMessageHandler] unhandled exception in pipeline'. Exception: Sitecore.EmailCampaign.Model.Web.Exceptions.MessageEventPipelineException Message: Failed to get campaign for Sitecore.EmailCampaign.Cm.Pipelines.HandleSentMessage.HandleSentMessagePipelineArgs Source: Sitecore.EmailCampaign.Cm at Sitecore.EmailCampaign.Cm.Pipelines.HandleSentMessage.IdentifyCampaign.Process(HandleSentMessagePipelineArgs args) at (Object , Object ) at Sitecore.Pipelines.PipelineMethod.Invoke(Object argument) at Sitecore.Pipelines.CoreProcessor.Invoke(Object argument) at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args) at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain, Boolean failIfNotExists) at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain) at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args) at Sitecore.Pipelines.CorePipeline.Run(String pipelineName, PipelineArgs args) at Sitecore.Modules.EmailCampaign.Core.PipelineHelper.RunPipeline(String pipelineName, PipelineArgs args) at Sitecore.EmailCampaign.Cm.Handlers.SentMessageHandler.CreateSentInteractions(SentMessage message)
In this case, statistics are not collected for the sent email campaign.
To resolve the issue, consider one of the following options:
Be aware that the hotfix was built for the specific Sitecore XP version and must not be installed on other Sitecore XP versions or in combination with other hotfixes. In case any other hotfixes have already been installed on a certain Sitecore XP instance, send a request for a compatibility check to Sitecore Support.
Note that the ZIP file contents must be extracted to locate installation instructions and related files inside. The hotfix must be installed on a CM instance and then synced with other instances using standard development practices.