diff --git a/Configuration/PyReleaseValidation/python/MatrixInjector.py b/Configuration/PyReleaseValidation/python/MatrixInjector.py
index 51348bae8f0e9..aa9a8b5dba602 100644
--- a/Configuration/PyReleaseValidation/python/MatrixInjector.py
+++ b/Configuration/PyReleaseValidation/python/MatrixInjector.py
@@ -261,6 +261,7 @@ def prepare(self,mReader, directories, mode='init'):
                         thisLabel=thisLabel+"_dblMiniAOD"
                     processStrPrefix=''
                     setPrimaryDs=None
+                    nanoedmGT=''
                     for step in s[3]:
                         
                         if 'INPUT' in step or (not isinstance(s[2][index],str)):
@@ -342,6 +343,10 @@ def prepare(self,mReader, directories, mode='init'):
                             chainDict['nowmTasklist'][-1]['ConfigCacheID']='%s/%s.py'%(dir,step)
                             chainDict['nowmTasklist'][-1]['GlobalTag']=chainDict['nowmTasklist'][-1]['nowmIO']['GT'] # copy to the proper parameter name
                             chainDict['GlobalTag']=chainDict['nowmTasklist'][-1]['nowmIO']['GT'] #set in general to the last one of the chain
+                            if 'NANOEDM' in step :
+                                nanoedmGT = chainDict['nowmTasklist'][-1]['nowmIO']['GT']
+                            if 'NANOMERGE' in step :
+                                chainDict['GlobalTag'] = nanoedmGT
                             if 'pileup' in chainDict['nowmTasklist'][-1]['nowmIO']:
                                 chainDict['nowmTasklist'][-1]['MCPileup']=chainDict['nowmTasklist'][-1]['nowmIO']['pileup']
                             if '--pileup ' in s[2][index]:      # catch --pileup (scenarion) and not --pileup_ (dataset to be mixed) => works also making PRE-MIXed dataset
@@ -360,10 +365,14 @@ def prepare(self,mReader, directories, mode='init'):
                                 #chainDict['AcquisitionEra'][step]=(chainDict['CMSSWVersion']+'-PU_'+chainDict['nowmTasklist'][-1]['GlobalTag']).replace('::All','')+thisLabel
                                 chainDict['AcquisitionEra'][step]=chainDict['CMSSWVersion']
                                 chainDict['ProcessingString'][step]=processStrPrefix+chainDict['nowmTasklist'][-1]['GlobalTag'].replace('::All','').replace('-','_')+thisLabel
+                                if 'NANOMERGE' in step :
+                                    chainDict['ProcessingString'][step]=processStrPrefix+nanoedmGT.replace('::All','').replace('-','_')+thisLabel
                             else:
                                 #chainDict['nowmTasklist'][-1]['AcquisitionEra']=(chainDict['CMSSWVersion']+'-PU_'+chainDict['nowmTasklist'][-1]['GlobalTag']).replace('::All','')+thisLabel
                                 chainDict['nowmTasklist'][-1]['AcquisitionEra']=chainDict['CMSSWVersion']
                                 chainDict['nowmTasklist'][-1]['ProcessingString']=processStrPrefix+chainDict['nowmTasklist'][-1]['GlobalTag'].replace('::All','').replace('-','_')+thisLabel
+                                if 'NANOMERGE' in step :
+                                    chainDict['nowmTasklist'][-1]['ProcessingString']=processStrPrefix+nanoedmGT.replace('::All','').replace('-','_')+thisLabel
 
                             if (self.batchName):
                                 chainDict['nowmTasklist'][-1]['Campaign'] = chainDict['nowmTasklist'][-1]['AcquisitionEra']+self.batchName
diff --git a/Configuration/PyReleaseValidation/python/relval_steps.py b/Configuration/PyReleaseValidation/python/relval_steps.py
index cf50453503ce1..961e8101fab23 100644
--- a/Configuration/PyReleaseValidation/python/relval_steps.py
+++ b/Configuration/PyReleaseValidation/python/relval_steps.py
@@ -1982,8 +1982,8 @@ def gen2018HiMix(fragment,howMuch):
 stepNanoAODDefaults = { '-s': 'NANO', '-n': 1000 }
 stepNanoAODData = merge([{ '--data':'', '--eventcontent' : 'NANOAOD' ,'--datatier': 'NANOAOD'    }, stepNanoAODDefaults ])
 stepNanoAODMC   = merge([{ '--mc':''  , '--eventcontent' : 'NANOAODSIM','--datatier': 'NANOAODSIM' }, stepNanoAODDefaults ])
-stepNanoEDMData = merge([{ '--data':'', '--eventcontent' : 'NANOAOD'     }, stepNanoAODDefaults ])
-stepNanoEDMMC   = merge([{ '--mc':''  , '--eventcontent' : 'NANOAODSIM' }, stepNanoAODDefaults ])
+stepNanoEDMData = merge([{ '--data':'', '--eventcontent' : 'NANOAOD' ,'--datatier': 'NANOEDMAOD'     }, stepNanoAODDefaults ])
+stepNanoEDMMC   = merge([{ '--mc':''  , '--eventcontent' : 'NANOAODSIM','--datatier': 'NANOEDMAODSIM' }, stepNanoAODDefaults ])
 
 steps['NANOAOD2016']   = merge([{'--conditions': 'auto:run2_data_relval', '--era': 'Run2_2016'}, stepNanoAODData ])
 steps['NANOAOD2017']   = merge([{'--conditions': 'auto:run2_data_relval', '--era': 'Run2_2017'}, stepNanoAODData ])