diff --git a/src/main/java/org/gridsuite/modification/dto/VoltageInitModificationInfos.java b/src/main/java/org/gridsuite/modification/dto/VoltageInitModificationInfos.java
index 28443339..39ac1288 100644
--- a/src/main/java/org/gridsuite/modification/dto/VoltageInitModificationInfos.java
+++ b/src/main/java/org/gridsuite/modification/dto/VoltageInitModificationInfos.java
@@ -17,7 +17,10 @@
 import org.gridsuite.modification.modifications.AbstractModification;
 import org.gridsuite.modification.modifications.VoltageInitModification;
 
+import java.time.Instant;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 /**
  * @author Franck Lecuyer <franck.lecuyer at rte-france.com>
@@ -48,6 +51,15 @@ public class VoltageInitModificationInfos extends ModificationInfos {
     @Schema(description = "buses modifications")
     private List<VoltageInitBusModificationInfos> buses;
 
+    @Schema(description = "root network name")
+    private String rootNetworkName;
+
+    @Schema(description = "node name")
+    private String nodeName;
+
+    @Schema(description = "computation date")
+    private Instant computationDate;
+
     @Override
     public AbstractModification toModification() {
         return new VoltageInitModification(this);
@@ -57,4 +69,13 @@ public AbstractModification toModification() {
     public ReportNode createSubReportNode(ReportNode reportNode) {
         return reportNode.newReportNode().withMessageTemplate("network.modification.voltageInitModification").add();
     }
+
+    @Override
+    public Map<String, String> getMapMessageValues() {
+        Map<String, String> mapMessageValues = new HashMap<>();
+        mapMessageValues.put("rootNetworkName", getRootNetworkName());
+        mapMessageValues.put("nodeName", getNodeName());
+        mapMessageValues.put("computationDate", getComputationDate() != null ? getComputationDate().toString() : null);
+        return mapMessageValues;
+    }
 }
diff --git a/src/test/java/org/gridsuite/modification/modifications/VoltageInitModificationTest.java b/src/test/java/org/gridsuite/modification/modifications/VoltageInitModificationTest.java
index a61cb735..4b64a2d7 100644
--- a/src/test/java/org/gridsuite/modification/modifications/VoltageInitModificationTest.java
+++ b/src/test/java/org/gridsuite/modification/modifications/VoltageInitModificationTest.java
@@ -13,7 +13,10 @@
 import org.gridsuite.modification.report.NetworkModificationReportResourceBundle;
 import org.gridsuite.modification.utils.NetworkCreation;
 import org.junit.jupiter.api.Test;
+
+import java.time.Instant;
 import java.util.List;
+import java.util.Map;
 import java.util.UUID;
 
 import static org.gridsuite.modification.utils.NetworkUtil.createGenerator;
@@ -199,6 +202,9 @@ protected ModificationInfos buildModification() {
                     .v(230.)
                     .angle(0.5)
                     .build()))
+            .rootNetworkName("rootNetwork1")
+            .nodeName("node1")
+            .computationDate(Instant.now())
             .build();
     }
 
@@ -260,6 +266,14 @@ void testVoltageInitDisconnectedCurrentSection1Section1() throws Exception {
         assertEquals(1, getNetwork().getShuntCompensator("v5shunt").getSectionCount());
     }
 
+    @Test
+    void testMapMessageValues() {
+        ModificationInfos modifications = buildModification();
+        Map<String, String> values = modifications.getMapMessageValues();
+        assertEquals("rootNetwork1", values.get("rootNetworkName"));
+        assertEquals("node1", values.get("nodeName"));
+    }
+
     @Override
     protected void assertAfterNetworkModificationApplication() {
         assertEquals(10., getNetwork().getGenerator("idGenerator").getTargetQ(), 0.001);