diff --git a/examples/cpp/SampleCppUWP/Main.cpp b/examples/cpp/SampleCppUWP/Main.cpp
index b00d72de..ecadd932 100644
--- a/examples/cpp/SampleCppUWP/Main.cpp
+++ b/examples/cpp/SampleCppUWP/Main.cpp
@@ -408,7 +408,6 @@ void run(ILogger* logger, int maxStressRuns) {
                 logger->SetContext("TeamName", "PIE");
                 logger->SetContext("AppID", VER1 VER2 "-" __DATE__ " " __TIME__);
                 // Set the semantic context. For example, an app will set this property after the user logs in.
-                logger->GetSemanticContext()->SetUserMsaId("BCCA864D-1386-4D5A-9570-B129F6DD42B7");
                 logger->SetContext("context.string.key", "boo");
 
                 long long_value = 12345L;
diff --git a/examples/cs/SampleCsUWP/App.xaml.cs b/examples/cs/SampleCsUWP/App.xaml.cs
index 249d49d7..bd612fd5 100644
--- a/examples/cs/SampleCsUWP/App.xaml.cs
+++ b/examples/cs/SampleCsUWP/App.xaml.cs
@@ -98,8 +98,6 @@ namespace SampleCsUWP
             Logger.SetContext("TeamName", "ARIA");
             Logger.SetContext("AppID", "UAPCS");
 
-            // Set the semantic context. For example, an app will set this property after the user logs in.
-            Logger.SemanticContext.UserMsaId = "BCCA864D-1386-4D5A-9570-B129F6DD42B7";
 
             var missingProps = new EventProperties("SomeEventWithMissingProps");
             missingProps.SetProperty("MyMissingProp", "12345");
diff --git a/lib/api/ContextFieldsProvider.cpp b/lib/api/ContextFieldsProvider.cpp
index 1593526e..8589cf39 100644
--- a/lib/api/ContextFieldsProvider.cpp
+++ b/lib/api/ContextFieldsProvider.cpp
@@ -272,12 +272,6 @@ namespace MAT_NS_BEGIN
                     record.extLoc[0].timezone = iter->second.as_string;
                 }
 
-                iter = m_commonContextFields.find(COMMONFIELDS_USER_MSAID);
-                if (iter != m_commonContextFields.end())
-                {
-                    record.extDevice[0].authSecId = iter->second.as_string;
-                }
-
                 iter = m_commonContextFields.find(COMMONFIELDS_NETWORK_COST);
                 if (iter != m_commonContextFields.end())
                 {