diff --git a/source/framework/core/src/TRestMetadata.cxx b/source/framework/core/src/TRestMetadata.cxx
index 4fcccc1fe..a2475d955 100644
--- a/source/framework/core/src/TRestMetadata.cxx
+++ b/source/framework/core/src/TRestMetadata.cxx
@@ -2630,18 +2630,23 @@ void TRestMetadata::SetError(string message, bool print) {
     fError = true;
     fNErrors++;
     if (message != "") {
-        fErrorMessage += message + "\n";
+        // We keep only the last error message
+        fErrorMessage = message + "\n";
         if (print) {
             cout << message << endl;
         }
     }
 }
 
+///////////////////////////////////////////////
+/// \brief It retrieves a map of all parameter:value found in the metadata class
+///
 void TRestMetadata::SetWarning(string message, bool print) {
     fWarning = true;
     fNWarnings++;
     if (message != "") {
-        fWarningMessage += message + "\n";
+        // We keep only the last warning message
+        fWarningMessage = message + "\n";
         if (print) {
             RESTWarning << message << RESTendl;
         }
diff --git a/source/framework/core/src/TRestThread.cxx b/source/framework/core/src/TRestThread.cxx
index 1b56c0186..f85cc8a5c 100644
--- a/source/framework/core/src/TRestThread.cxx
+++ b/source/framework/core/src/TRestThread.cxx
@@ -585,13 +585,21 @@ void TRestThread::EndProcess() {
         if (fProcessChain[i]->GetWarning()) nWarnings++;
     }
 
-    if (nWarnings)
+    if (nWarnings) {
         RESTWarning << nWarnings
-                    << " process warnings were found! Use run0->PrintWarnings(); to get additional info."
+                    << " process warnings were found! Check them inside the generated root file: "
                     << RESTendl;
-    if (nErrors)
+        RESTWarning << "restRoot output.root" << RESTendl;
+        RESTWarning << "[0] run->PrintWarnings(); to get additional info." << RESTendl;
+    }
+    if (nErrors) {
         RESTError << nErrors << " process errors were found! Use run0->PrintErrors(); to get additional info."
                   << RESTendl;
+        RESTError << nErrors
+                  << " process errors were found! Check them inside the generated root file: " << RESTendl;
+        RESTError << "restRoot output.root" << RESTendl;
+        RESTError << "[0] run->PrintErrors(); to get additional info." << RESTendl;
+    }
 
     delete fAnalysisTree;
 }