diff --git a/src/components/dialogs/import-modification-dialog.tsx b/src/components/dialogs/import-modification-dialog.tsx
index 3b4c713038..4315890b6c 100644
--- a/src/components/dialogs/import-modification-dialog.tsx
+++ b/src/components/dialogs/import-modification-dialog.tsx
@@ -13,20 +13,17 @@ import {
     TreeViewFinderNodeProps,
     useSnackMessage,
 } from '@gridsuite/commons-ui';
-import { copyOrMoveModifications } from '../../services/study';
+import { executeCompositeModificationAction } from '../../services/study';
 import { FunctionComponent } from 'react';
 import { useSelector } from 'react-redux';
 import { AppState } from 'redux/reducer.type';
-import { NetworkModificationCopyType } from 'components/graph/menus/network-modifications/network-modification-menu.type';
+import { CompositeModificationAction } from 'components/graph/menus/network-modifications/network-modification-menu.type';
 
 /**
  * Dialog to select some network modifications and append them in the current node
  * @param {Boolean} open Is the dialog open ?
  * @param {EventListener} onClose Event to close the dialog
- * @param currentNode the current node
- * @param studyUuid Id of the current study
  */
-
 interface ImportModificationDialogProps {
     open: boolean;
     onClose: () => void;
@@ -39,15 +36,20 @@ const ImportModificationDialog: FunctionComponent<ImportModificationDialogProps>
     const currentNode = useSelector((state: AppState) => state.currentTreeNode);
 
     const processSelectedElements = (selectedElements: TreeViewFinderNodeProps[]) => {
-        const modificationUuidList = selectedElements.map((e) => e.id);
-        // import selected modifications
-        if (modificationUuidList.length > 0 && studyUuid && currentNode) {
-            const copyInfos = {
-                copyType: NetworkModificationCopyType.SPLIT_COMPOSITE,
-                originStudyUuid: studyUuid,
-                originNodeUuid: currentNode.id,
+        const modificationsToInsert = selectedElements.map((e) => {
+            return {
+                first: e.id,
+                second: e.name,
             };
-            copyOrMoveModifications(studyUuid, currentNode.id, modificationUuidList, copyInfos).catch((error) => {
+        });
+        // import selected modifications
+        if (modificationsToInsert.length > 0 && studyUuid && currentNode) {
+            executeCompositeModificationAction(
+                studyUuid,
+                currentNode.id,
+                modificationsToInsert,
+                CompositeModificationAction.SPLIT
+            ).catch((error) => {
                 snackWithFallback(snackError, error, { headerId: 'errDuplicateModificationMsg' });
             });
         }
diff --git a/src/components/graph/menus/network-modifications/network-modification-menu.type.ts b/src/components/graph/menus/network-modifications/network-modification-menu.type.ts
index e7c1d3e216..d93202059e 100644
--- a/src/components/graph/menus/network-modifications/network-modification-menu.type.ts
+++ b/src/components/graph/menus/network-modifications/network-modification-menu.type.ts
@@ -41,8 +41,11 @@ export interface ExcludedNetworkModifications {
 export enum NetworkModificationCopyType {
     COPY = 'COPY',
     MOVE = 'MOVE',
-    SPLIT_COMPOSITE = 'SPLIT_COMPOSITE',
-    INSERT_COMPOSITE = 'INSERT_COMPOSITE',
+}
+
+export enum CompositeModificationAction {
+    SPLIT = 'SPLIT', // the network modifications contained into the composite modifications are extracted and inserted one by one
+    INSERT = 'INSERT', // the composite modifications are fully inserted as composite modifications
 }
 
 export interface NetworkModificationCopyInfos {
diff --git a/src/services/study/index.ts b/src/services/study/index.ts
index 3f56a3b271..4891eb31dc 100644
--- a/src/services/study/index.ts
+++ b/src/services/study/index.ts
@@ -19,7 +19,10 @@ import {
     Parameter,
     safeEncodeURIComponent,
 } from '@gridsuite/commons-ui';
-import { NetworkModificationCopyInfos } from 'components/graph/menus/network-modifications/network-modification-menu.type';
+import {
+    CompositeModificationAction,
+    NetworkModificationCopyInfos,
+} from 'components/graph/menus/network-modifications/network-modification-menu.type';
 import type { Svg } from 'components/grid-layout/cards/diagrams/diagram.type';
 
 export const PREFIX_STUDY_QUERIES = import.meta.env.VITE_API_GATEWAY + '/study';
@@ -219,6 +222,36 @@ export function fetchContingencyCount(
     return backendFetchJson(url);
 }
 
+export function executeCompositeModificationAction(
+    studyUuid: UUID,
+    targetNodeId: UUID,
+    compositeModificationsToInsert: {
+        first: UUID;
+        second: string; // composite modification name (if needed)
+    }[],
+    compositeModificationAction: CompositeModificationAction
+) {
+    const url =
+        PREFIX_STUDY_QUERIES +
+        '/v1/studies/' +
+        safeEncodeURIComponent(studyUuid) +
+        '/nodes/' +
+        safeEncodeURIComponent(targetNodeId) +
+        '/composite-modifications?' +
+        new URLSearchParams({
+            action: compositeModificationAction.toString(),
+        });
+
+    return backendFetch(url, {
+        method: 'PUT',
+        headers: {
+            Accept: 'application/json',
+            'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(compositeModificationsToInsert),
+    });
+}
+
 export function copyOrMoveModifications(
     studyUuid: UUID,
     targetNodeId: UUID,
@@ -239,18 +272,13 @@ export function copyOrMoveModifications(
             originNodeUuid: copyInfos.originNodeUuid ?? '',
         });
 
-    // TODO : conversion to a ModificationsToCopyInfos dto => this will be useful and improved when INSERT_COMPOSITE action will be made available from the front
-    const modifications = modificationToCutUuidList.map((modificationUuid) => {
-        return { uuid: modificationUuid };
-    });
-
     return backendFetch(copyOrMoveModificationUrl, {
         method: 'PUT',
         headers: {
             Accept: 'application/json',
             'Content-Type': 'application/json',
         },
-        body: JSON.stringify(modifications),
+        body: JSON.stringify(modificationToCutUuidList),
     });
 }