Added Contact Is Not Shown in List Manager in a Scaled Sitecore XP 9
There was a time when I needed to help someone from finding what’s wrong with List Manager in a scaled SXP 9 (the exact version was Sitecore Experience Platform 9.0 rev. 180604 (9.0 Update-2) ). New contacts added into List Manager does not appear even though the blue color message box around the top area says: “ The contact has been added to the list, and will be available after indexing. ” Looking at the Sitecore logs, there are errors such as: 4244 17:14:27 ERROR [ListManagement]: Failed to get count of contacts for 86c048c4-761d-47c8-814f-30344a5dcac8 contact list. The error has been occurred: The HTTP response was not successful: InternalServerError Exception: Sitecore.XConnect.XdbSearchUnavailableException Message: The HTTP response was not successful: InternalServerError Source: Sitecore.Xdb.Common.Web at Sitecore.Xdb.Common.Web.Synchronous.SynchronousExtensions.SuspendContextLock[TResult](Func`1 taskFactory) at Sitecore.XConnect.Client.XConnectSync