diff --git a/PWGCF/JCorran/Core/JFFlucAnalysis.h b/PWGCF/JCorran/Core/JFFlucAnalysis.h
index 01589a09849..4900e5c5b62 100644
--- a/PWGCF/JCorran/Core/JFFlucAnalysis.h
+++ b/PWGCF/JCorran/Core/JFFlucAnalysis.h
@@ -155,7 +155,7 @@ class JFFlucAnalysis : public TNamed
       Double_t corrInv = 1.0;
       using JInputClassIter = typename JInputClass::iterator;
       if constexpr (std::experimental::is_detected<hasWeightEff, const JInputClassIter>::value)
-        corrInv /= track.weightEff();
+        corrInv *= track.weightEff();
       if constexpr (std::experimental::is_detected<hasSign, const JInputClassIter>::value)
         pht[HIST_THN_PTETA]->Fill(fCent, track.pt(), track.eta(), track.sign(), corrInv);
       else
diff --git a/PWGCF/JCorran/Core/JQVectors.h b/PWGCF/JCorran/Core/JQVectors.h
index c96aac454b7..01693ae6073 100644
--- a/PWGCF/JCorran/Core/JQVectors.h
+++ b/PWGCF/JCorran/Core/JQVectors.h
@@ -84,7 +84,7 @@ class JQVectors : public std::conditional_t<gap, JQVectorsGapBase<Q, nh, nk>, JQ
           if constexpr (std::experimental::is_detected<hasWeightNUA, const JInputClassIter>::value)
             tf /= track.weightNUA();
           if constexpr (std::experimental::is_detected<hasWeightEff, const JInputClassIter>::value)
-            tf /= track.weightEff();
+            tf *= track.weightEff();
         }
       }
     }
diff --git a/PWGCF/JCorran/Tasks/jflucAnalysisTask.cxx b/PWGCF/JCorran/Tasks/jflucAnalysisTask.cxx
index 6e0ba68d2df..0072f2c2a51 100644
--- a/PWGCF/JCorran/Tasks/jflucAnalysisTask.cxx
+++ b/PWGCF/JCorran/Tasks/jflucAnalysisTask.cxx
@@ -12,25 +12,27 @@
 /// \author Dong Jo Kim (djkim@jyu.fi)
 /// \since Sep 2022
 
-#include <deque>
+#include "Common/Core/TrackSelection.h"
+#include "Common/DataModel/Centrality.h"
+#include "Common/DataModel/EventSelection.h"
+#include "Common/DataModel/TrackSelectionTables.h"
 
-#include "Framework/AnalysisTask.h"
 #include "Framework/ASoAHelpers.h"
-#include "Framework/RunningWorkflowInfo.h"
+#include "Framework/AnalysisTask.h"
 #include "Framework/HistogramRegistry.h"
-
-#include "Common/DataModel/EventSelection.h"
-#include "Common/Core/TrackSelection.h"
-#include "Common/DataModel/TrackSelectionTables.h"
-#include "Common/DataModel/Centrality.h"
+#include "Framework/RunningWorkflowInfo.h"
 #include "ReconstructionDataFormats/V0.h"
 
+#include <deque>
+
 // #include "CCDB/BasicCCDBManager.h"
 
-#include "PWGCF/JCorran/DataModel/JCatalyst.h"
-#include "PWGCF/DataModel/CorrelationsDerived.h"
 #include "JFFlucAnalysis.h"
 #include "JFFlucAnalysisO2Hist.h"
+
+#include "PWGCF/DataModel/CorrelationsDerived.h"
+#include "PWGCF/JCorran/DataModel/JCatalyst.h"
+
 #include "Framework/runDataProcessing.h"
 
 using namespace o2;
@@ -52,6 +54,7 @@ struct jflucAnalysisTask {
   O2_DEFINE_CONFIGURABLE(etamax, float, 0.8, "Maximum eta for tracks");
   O2_DEFINE_CONFIGURABLE(ptmin, float, 0.2, "Minimum pt for tracks");
   O2_DEFINE_CONFIGURABLE(ptmax, float, 5.0, "Maximum pt for tracks");
+  O2_DEFINE_CONFIGURABLE(cfgCentBinsForMC, int, 0, "0 = OFF and 1 = ON for data like multiplicity/centrality bins for MC process");
 
   ConfigurableAxis axisMultiplicity{"axisMultiplicity", {VARIABLE_WIDTH, 0, 5, 10, 20, 30, 40, 50, 100.1}, "multiplicity / centrality axis for histograms"};
   ConfigurableAxis phiAxis{"axisPhi", {50, 0.0, o2::constants::math::TwoPI}, "phi axis for histograms"};
@@ -60,8 +63,9 @@ struct jflucAnalysisTask {
   ConfigurableAxis ptAxis{"axisPt", {60, 0.0, 300.0}, "pt axis for histograms"};
   ConfigurableAxis massAxis{"axisMass", {1, 0.0, 10.0}, "mass axis for histograms"};
 
-  Filter jtrackFilter = (aod::jtrack::pt > ptmin) && (aod::jtrack::pt < ptmax);    // eta cuts done by jfluc
-  Filter cftrackFilter = (aod::cftrack::pt > ptmin) && (aod::cftrack::pt < ptmax); // eta cuts done by jfluc
+  Filter jtrackFilter = (aod::jtrack::pt > ptmin) && (aod::jtrack::pt < ptmax);                                                     // eta cuts done by jfluc
+  Filter cftrackFilter = (aod::cftrack::pt > ptmin) && (aod::cftrack::pt < ptmax);                                                  // eta cuts done by jfluc
+  Filter cfmcparticleFilter = (aod::cfmcparticle::pt > ptmin) && (aod::cfmcparticle::pt < ptmax) && (aod::cfmcparticle::sign != 0); // eta cuts done by jfluc
   Filter cf2pFilter = (aod::cf2prongtrack::pt > ptmin) && (aod::cf2prongtrack::pt < ptmax);
 
   HistogramRegistry registry{"registry"};
@@ -74,7 +78,7 @@ struct jflucAnalysisTask {
     auto axisSpecZvt = AxisSpec(zvtAxis);
     auto axisSpecPt = AxisSpec(ptAxis);
     auto axisSpecMass = AxisSpec(massAxis);
-    if (doprocessJDerived || doprocessJDerivedCorrected || doprocessCFDerived || doprocessCFDerivedCorrected) {
+    if (doprocessJDerived || doprocessJDerivedCorrected || doprocessCFDerived || doprocessCFDerivedCorrected || doprocessMCCFDerived) {
       pcf = new JFFlucAnalysisO2Hist(registry, axisSpecMult, axisSpecPhi, axisSpecEta, axisSpecZvt, axisSpecPt, axisSpecMass, "jfluc");
       pcf->AddFlags(JFFlucAnalysis::kFlucEbEWeighting);
       pcf->UserCreateOutputObjects();
@@ -166,6 +170,27 @@ struct jflucAnalysisTask {
   }
   PROCESS_SWITCH(jflucAnalysisTask, processCF2ProngDerivedCorrected, "Process CF derived data with 2-prongs as POI and charged particles as REF with corrections.", false);
 
+  void processMCCFDerived(aod::CFMcCollision const& mcCollision, soa::Filtered<aod::CFMcParticles> const& particles, soa::SmallGroups<aod::CFCollisionsWithLabel> const& collisions)
+  {
+    auto multiplicity = mcCollision.multiplicity();
+    if (cfgCentBinsForMC > 0) {
+      if (collisions.size() == 0) {
+        return;
+      }
+      for (const auto& collision : collisions) {
+        multiplicity = collision.multiplicity();
+      }
+    }
+    pcf->Init();
+    pcf->SetEventCentrality(multiplicity);
+    pcf->SetEventVertex(mcCollision.posZ());
+    pcf->FillQA(particles);
+    qvecs.Calculate(particles, etamin, etamax);
+    pcf->SetJQVectors(&qvecs);
+    pcf->UserExec("");
+  }
+  PROCESS_SWITCH(jflucAnalysisTask, processMCCFDerived, "Process CF derived MC data", false);
+
   JFFlucAnalysis::JQVectorsT qvecs;
   JFFlucAnalysis::JQVectorsT qvecsRef;
   JFFlucAnalysisO2Hist* pcf;