diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/05_insert_periodo_enrichment_template.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/05_insert_periodo_enrichment_template.sparql
index 8e31fc0..d0b7111 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/05_insert_periodo_enrichment_template.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/05_insert_periodo_enrichment_template.sparql
@@ -49,3 +49,46 @@
        }
    }
  };
+
+ # if there is no periodO, but you have the dates then you want to put them in the temporal index fields.
+ # Add from/until and native period in the periodo graphs:
+
+ <https://ariadne-infrastructure.eu/ariadneplus::%datasource::periodoplus> :
+ ?temporal aocat:has_period ?periodOURI .
+ ?temporal aocat:from ?temporalFrom .
+ ?temporal aocat:until ?temporalUntil .
+
+ <https://ariadne-infrastructure.eu/ariadneplus::%datasource::periodo>
+ ?periodOURI skos:prefLabel ?origTemporalPeriodName .
+
+
+PREFIX  aocat: <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/>
+ INSERT {
+     GRAPH <https://ariadne-infrastructure.eu/ariadneplus::%datasource::periodoplus> {
+           ?temporal aocat:has_period ?nativePeriod .
+           ?temporal aocat:from ?temporalFrom .
+           ?temporal aocat:until ?temporalUntil .
+     }
+ }
+ WHERE {
+     GRAPH <https://ariadne-infrastructure.eu/api_________::ariadne_plus::%datasource::%coll> {
+         ?temporal aocat:has_native_period ?nativePeriod .
+         ?temporal aocat:from ?temporalFrom .
+         ?temporal aocat:until ?temporalUntil .
+     }
+ };
+
+ PREFIX  aocat: <https://www.ariadne-infrastructure.eu/resource/ao/cat/1.1/>
+ PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+ PREFIX  skos: <http://www.w3.org/2004/02/skos/core#>
+ INSERT {
+     GRAPH <https://ariadne-infrastructure.eu/ariadneplus::%datasource::periodo> {
+           ?nativePeriod skos:prefLabel ?periodLabel .
+     }
+ }
+ WHERE {
+     GRAPH <https://ariadne-infrastructure.eu/api_________::ariadne_plus::%datasource::%coll> {
+         ?temporal aocat:has_native_period ?nativePeriod .
+         ?nativePeriod rdfs:label ?periodLabel .
+     }
+ };
\ No newline at end of file
diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrichment-graphs-info.txt b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrichment-graphs-info.txt
index adbaf11..5aa696d 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrichment-graphs-info.txt
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/enrichment-graphs-info.txt
@@ -27,4 +27,9 @@ For the subjects:
 %record aocat:has_derived_subject ?derivedSubject .
 
 <https://ariadne-infrastructure.eu/api_________::ariadne_plus::%datasource::aat>
-?derivedSubject skos:prefLabel ?origDerivedSubjectPrefLabel .
\ No newline at end of file
+?derivedSubject skos:prefLabel ?origDerivedSubjectPrefLabel .
+
+
+To update period index:
+https://ariadne-portal-staging.d4science.org/api/updatePeriods?id=feb01aaac066417281fb1cbed7bea694a611a462
+https://portal.ariadne-infrastructure.eu/api/updatePeriods?id=feb01aaac066417281fb1cbed7bea694a611a462