diff --git a/Configuration/StandardSequences/python/Mixing.py b/Configuration/StandardSequences/python/Mixing.py
index 8c372cb5612c7..57f3c47cd3df8 100644
--- a/Configuration/StandardSequences/python/Mixing.py
+++ b/Configuration/StandardSequences/python/Mixing.py
@@ -124,6 +124,7 @@ def addMixingScenario(label,dict):
 addMixingScenario("2018_25ns_UltraLegacy_PoissonOOTPU",{'file': 'SimGeneral.MixingModule.mix_2018_25ns_UltraLegacy_PoissonOOTPU_cfi'})
 addMixingScenario("Run3_Flat55To75_PoissonOOTPU",{'file': 'SimGeneral.MixingModule.mix_Run3_Flat55To75_PoissonOOTPU_cfi'})
 addMixingScenario("Flat0To200_PoissonOOTPU",{'file': 'SimGeneral.MixingModule.mix_Flat0To200_PoissonOOTPU_cfi'})
+addMixingScenario("2023_Fills_8807_8901_ProjectedPileup_PoissonOOTPU",{'file': 'SimGeneral.MixingModule.mix_2023_Fills_8807_8901_ProjectedPileup_PoissonOOTPU_cfi'})
 addMixingScenario("ProdStep2",{'file': 'SimGeneral.MixingModule.mixProdStep2_cfi'})
 addMixingScenario("fromDB",{'file': 'SimGeneral.MixingModule.mix_fromDB_cfi'})
 addMixingScenario("2022_LHC_Simulation_10h_2h",{'file': 'SimGeneral.MixingModule.Run3_2022_LHC_Simulation_10h_2h_cfi'})
diff --git a/SimGeneral/MixingModule/python/mix_2023_Fills_8807_8901_ProjectedPileup_PoissonOOTPU_cfi.py b/SimGeneral/MixingModule/python/mix_2023_Fills_8807_8901_ProjectedPileup_PoissonOOTPU_cfi.py
new file mode 100644
index 0000000000000..c9b86da88827b
--- /dev/null
+++ b/SimGeneral/MixingModule/python/mix_2023_Fills_8807_8901_ProjectedPileup_PoissonOOTPU_cfi.py
@@ -0,0 +1,38 @@
+import FWCore.ParameterSet.Config as cms
+from SimGeneral.MixingModule.mix_probFunction_25ns_PoissonOOTPU_cfi import *
+mix.input.nbPileupEvents.probFunctionVariable = cms.vint32(
+    0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+    10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+    30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+    40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+    50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+    60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+    70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+    80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+    90, 91, 92, 93, 94, 95, 96, 97, 98, 99
+    )
+
+mix.input.nbPileupEvents.probValue = cms.vdouble(
+    1.65236148709e-05, 3.47406408321e-05, 5.57912899417e-05, 6.27679568574e-05, 7.83474699833e-05,
+    9.80786259998e-05, 9.65235339337e-05, 9.03972546793e-05, 9.56611796998e-05, 9.88888224447e-05,
+    9.53701311362e-05, 9.93023900027e-05, 0.000109262215431, 0.000123029615372, 0.000135008096547,
+    0.000158193246537, 0.000186014815125, 0.000228419554039, 0.000267389560484, 0.000315922507855,
+    0.000416227466275, 0.000698049630109, 0.00116793044199, 0.00178063774682, 0.00246468799437,
+    0.00316847035758, 0.00389442939612, 0.0047392653232, 0.00573059096641, 0.00685092968559,
+    0.00808936442926, 0.00955656463049, 0.0110447922022, 0.0125526964898, 0.0139789694337,
+    0.015327763981, 0.0163215742204, 0.0171302918511, 0.0178077735247, 0.0184457415774,
+    0.0189548618833, 0.0194505800505, 0.0199958317289, 0.0204804309485, 0.0209049161375,
+    0.0214306162665, 0.0220467713756, 0.0228896177623, 0.0239933317134, 0.0253551335622,
+    0.0268273082477, 0.028258573015, 0.0299016951153, 0.0314952660508, 0.0329635440259,
+    0.0347102632212, 0.036496671, 0.0377960732226, 0.0381346727759, 0.0377162165009,
+    0.0363773741672, 0.0341648869124, 0.0310569216987, 0.0275830784975, 0.0241470689027,
+    0.020861027449, 0.0178630735871, 0.0152055780319, 0.0129131649069, 0.010973580778,
+    0.00916007234141, 0.00743221345078, 0.0059028667516, 0.00467032854464, 0.00386110035256,
+    0.00318305283583, 0.00266754327259, 0.00226359928581, 0.00180625797491, 0.00141636388019,
+    0.00108755770998, 0.000787994389608, 0.000523714097254, 0.000303141693895, 0.000162842450935,
+    9.32445627546e-05, 5.43060254629e-05, 3.43311807317e-05, 1.81197444951e-05, 7.72021119321e-06,
+    2.50707744394e-06, 5.82006272471e-07, 2.67538956624e-08, 0.0, 0.0,
+    0.0, 0.0, 0.0, 0.0, 0.0
+    )
+