diff --git a/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/IOperationDto.java b/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/IOperationDto.java
index e41d8208dbdc4828b3c3b7298aa903cc519ec954..2d8db3b4e3c2c890679bb2f9a438088ceac21487 100644
--- a/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/IOperationDto.java
+++ b/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/IOperationDto.java
@@ -39,7 +39,6 @@ package fr.gouv.vitamui.commons.api.domain;
 import java.time.OffsetDateTime;
 
 import fr.gouv.vitamui.commons.api.enums.OperationStatus;
-import fr.gouv.vitamui.commons.api.enums.OperationType;
 
 /**
  * Interface describing a basic operation.
@@ -52,9 +51,9 @@ public interface IOperationDto {
 
     void setId(String id);
 
-    OperationType getType();
+    String getType();
 
-    void setType(OperationType type);
+    void setType(String type);
 
     Integer getTenantIdentifier();
 
diff --git a/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/OperationDto.java b/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/OperationDto.java
index f49d7e87d43d658cd0e8b814c602489eb3e73a67..990c02510571ecda4b72ba4795ff9faa32e3ad89 100644
--- a/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/OperationDto.java
+++ b/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/domain/OperationDto.java
@@ -44,7 +44,6 @@ import javax.validation.constraints.NotNull;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
 import fr.gouv.vitamui.commons.api.enums.OperationStatus;
-import fr.gouv.vitamui.commons.api.enums.OperationType;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
 import lombok.Setter;
@@ -63,7 +62,7 @@ public class OperationDto extends IdDto implements IOperationDto {
     private static final long serialVersionUID = -3962480065920989325L;
 
     @NotNull
-    private OperationType type;
+    private String type;
 
     @NotNull
     private Integer tenantIdentifier;
diff --git a/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/enums/OperationStatus.java b/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/enums/OperationStatus.java
index bb15c4d931f78ba9e1e350ea7b11c5e7d8da781e..727ae5f148a6a1195ddb1f7a0fc11c1f454c33cc 100644
--- a/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/enums/OperationStatus.java
+++ b/commons/commons-api/src/main/java/fr/gouv/vitamui/commons/api/enums/OperationStatus.java
@@ -36,12 +36,30 @@
  */
 package fr.gouv.vitamui.commons.api.enums;
 
+import lombok.Getter;
+
+@Getter
 public enum OperationStatus {
 
-    WAITING,
-    PAUSED,
-    RUNNING,
-    FAILED,
-    CANCELED,
-    COMPLETED;
+    CANCELED (10),
+    WAITING(4),
+    PAUSED(3),
+    RUNNING(2),
+    FAILED(0),
+    COMPLETED(0);
+
+
+
+    /**
+     * Value allowing to order status (can be used when an update of the.
+     */
+    private final int priority;
+
+    /**
+     * Constructor.
+     * @param priority Priority of the status
+     */
+    private OperationStatus(int priority) {
+        this.priority = priority;
+    }
 }
diff --git a/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/domain/Operation.java b/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/domain/Operation.java
index fa485cbd75cab9a7a1b7de648ba9698f6ec7b167..4b8d2dfcb0fdc1028cf9085d360c6d18975eff8a 100644
--- a/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/domain/Operation.java
+++ b/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/domain/Operation.java
@@ -62,7 +62,7 @@ import lombok.ToString;
 public class Operation extends IdDocument {
 
     @NotNull
-    private OperationType type;
+    private String type;
 
     private String author;
 
diff --git a/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationFactory.java b/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationFactory.java
index 6805fd65ea365dfe997d5bab00de10edda9511cb..1841f60d9c32efff3bb8e7077ca242d4e23d4c5c 100644
--- a/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationFactory.java
+++ b/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationFactory.java
@@ -53,7 +53,7 @@ public class OperationFactory {
     public static OperationDto createOperation(String author, Integer tenantIdentifier, OperationType type) {
         final OperationDto operation = createOperation(type);
 
-        return initOperation(operation, author, tenantIdentifier, type);
+        return initOperation(operation, author, tenantIdentifier, type.toString());
     }
 
     protected static OperationDto createOperation(OperationType type) {
@@ -66,7 +66,7 @@ public class OperationFactory {
     }
 
     protected static OperationDto initOperation(OperationDto operation, String author, Integer tenantIdentifier,
-            OperationType type) {
+            String type) {
         operation.setStatus(OperationStatus.RUNNING);
         operation.setTenantIdentifier(tenantIdentifier);
         operation.setCreationDate(OffsetDateTime.now());
diff --git a/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationService.java b/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationService.java
index 1f548d54e7f7ebc3d3ff6eb537f86bfc4c301318..b820c4d084cd98ec3072ac63d737eea6b7beed71 100644
--- a/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationService.java
+++ b/commons/commons-mongo/src/main/java/fr/gouv/vitamui/commons/mongo/service/OperationService.java
@@ -49,7 +49,6 @@ import javax.validation.ValidatorFactory;
 
 import fr.gouv.vitamui.commons.api.converter.Converter;
 import fr.gouv.vitamui.commons.api.domain.OperationDto;
-import fr.gouv.vitamui.commons.api.enums.OperationType;
 import fr.gouv.vitamui.commons.mongo.converter.OperationConverter;
 import fr.gouv.vitamui.commons.mongo.dao.CustomSequenceRepository;
 import fr.gouv.vitamui.commons.mongo.dao.OperationRepository;
@@ -60,7 +59,7 @@ public class OperationService extends VitamUICrudService<OperationDto, Operation
 
     protected final OperationRepository<Operation> repository;
 
-    private final Map<OperationType, Converter> customConverters = new HashMap<>();
+    private final Map<String, Converter> customConverters = new HashMap<>();
 
     private final Converter<OperationDto, Operation> defaultConverter;
 
@@ -126,7 +125,7 @@ public class OperationService extends VitamUICrudService<OperationDto, Operation
         return getConverter(dto.getType()).convertDtoToEntity(dto);
     }
 
-    protected Converter<OperationDto, Operation> getConverter(final OperationType type) {
+    protected Converter<OperationDto, Operation> getConverter(final String type) {
         if (!customConverters.containsKey(type)) {
             return defaultConverter;
         }
@@ -138,7 +137,7 @@ public class OperationService extends VitamUICrudService<OperationDto, Operation
      * @param type Type of the operation.
      * @param converter Converter linked to the type.
      */
-    public void addConverter(final OperationType type, final Converter<? extends OperationDto, ? extends Operation> converter) {
+    public void addConverter(final String type, final Converter<? extends OperationDto, ? extends Operation> converter) {
         customConverters.put(type, converter);
     }