diff --git a/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/Constants.java b/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/Constants.java
index 3eee6111..fd2fc860 100644
--- a/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/Constants.java
+++ b/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/Constants.java
@@ -59,6 +59,7 @@ private Constants() {}
 	public static final String REPORTING_DATA_INTERVIEWER_ID_NULL_PLACEHOLDER = "NON_AFFECTE_";
 	public static final String REPORTING_DATA_INPUT_DATE_FORMAT = "dd/MM/yyyy HH:mm:ss";
 	public static final String REPORTING_DATA_OUTPUT_DATE_FORMAT = "yyyy-MM-dd-hh-mm-ss";
+	public static final String REPORTING_DATA_FOLLOWUP_OUTPUT_STRING = "RELANCE";
 	public static final String END_LINE = "\n";
 	public static final String OUTPUT_FOLDER_DATETIME_PATTERN = "yyyy_MM_dd_HH_mm_ss";
 	public static final String ERRORS_FILE_NAME = "errors.txt";
diff --git a/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/ContactAttempt.java b/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/ContactAttempt.java
index 2898b1c9..62fa02c1 100644
--- a/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/ContactAttempt.java
+++ b/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/ContactAttempt.java
@@ -3,7 +3,6 @@
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
-import java.util.Date;
 
 import lombok.Getter;
 import lombok.Setter;
diff --git a/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/StateType.java b/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/StateType.java
index a1c70119..529e9c4b 100644
--- a/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/StateType.java
+++ b/kraftwerk-core/src/main/java/fr/insee/kraftwerk/core/extradata/reportingdata/StateType.java
@@ -3,10 +3,12 @@
 import java.util.HashMap;
 import java.util.Map;
 
+import fr.insee.kraftwerk.core.Constants;
 import lombok.Getter;
 
 @Getter
 public enum StateType {
+
   STATE01("NVM", "UE non visible gestionnaire"),
   STATE02("NNS", "Non affecté, non commencé"),
   STATE03("ANV", "Affectée, non visible enquêteur"),
@@ -31,8 +33,8 @@ public enum StateType {
   STATE22("VALPAP", "Questionnaire validé sur papier"),
   STATE23("VALINT", "Questionnaire validé sur internet"),
   STATE24("REFUSAL", "Refus de répondre"),
-  STATE25("RELANCE", "RELANCE"),
-  STATE26("FOLLOWUP", "RELANCE");
+  STATE25("RELANCE", Constants.REPORTING_DATA_FOLLOWUP_OUTPUT_STRING),
+  STATE26("FOLLOWUP", Constants.REPORTING_DATA_FOLLOWUP_OUTPUT_STRING);
   
 	private final String key;
 	private final String value;