diff --git a/pom.xml b/pom.xml
index 2d774e6d..9641f83a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,7 +46,7 @@
         <jaxb-runtime.version>2.4.0-b180830.0438</jaxb-runtime.version>
         <jib.from.image>gridsuite/java-simulator:2.0.0</jib.from.image>
         <liquibase-hibernate-package>org.gridsuite.loadflow.server</liquibase-hibernate-package>
-        <gridsuite-dependencies.version>26</gridsuite-dependencies.version>
+        <gridsuite-dependencies.version>27</gridsuite-dependencies.version>
         <!--
         antlr4 from openloadflow conflicts ? Only on repository.count() method in this project..
         [ERROR] org.gridsuite.loadflow.server.SupervisionControllerTest.testResultCount <<< ERROR!
@@ -124,10 +124,6 @@
             <groupId>com.powsybl</groupId>
             <artifactId>powsybl-iidm-api</artifactId>
         </dependency>
-        <dependency>
-            <groupId>com.powsybl</groupId>
-            <artifactId>powsybl-iidm-mergingview</artifactId>
-        </dependency>
         <dependency>
             <groupId>com.powsybl</groupId>
             <artifactId>powsybl-network-store-client</artifactId>
diff --git a/src/main/java/org/gridsuite/loadflow/server/LoadFlowController.java b/src/main/java/org/gridsuite/loadflow/server/LoadFlowController.java
index dce4d7ae..bf141a8c 100644
--- a/src/main/java/org/gridsuite/loadflow/server/LoadFlowController.java
+++ b/src/main/java/org/gridsuite/loadflow/server/LoadFlowController.java
@@ -23,11 +23,9 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
-import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
-import java.util.stream.Collectors;
 
 import static org.gridsuite.loadflow.server.service.NotificationService.HEADER_USER_ID;
 import static org.springframework.http.MediaType.APPLICATION_JSON_VALUE;
@@ -49,7 +47,6 @@ public class LoadFlowController {
     @ApiResponses(value = {@ApiResponse(responseCode = "200", description = "The load flow has been performed")})
     public ResponseEntity<UUID> run(@Parameter(description = "Network UUID") @PathVariable("networkUuid") UUID networkUuid,
                                     @Parameter(description = "Variant Id") @RequestParam(name = "variantId", required = false) String variantId,
-                                    @Parameter(description = "Other networks UUID") @RequestParam(name = "networkUuid", required = false) List<String> otherNetworks,
                                     @Parameter(description = "Provider") @RequestParam(name = "provider", required = false) String provider,
                                     @Parameter(description = "Result receiver") @RequestParam(name = "receiver", required = false) String receiver,
                                     @Parameter(description = "reportUuid") @RequestParam(name = "reportUuid", required = false) UUID reportId,
@@ -59,11 +56,9 @@ public ResponseEntity<UUID> run(@Parameter(description = "Network UUID") @PathVa
                                     @RequestBody(required = false) LoadFlowParametersInfos loadflowParams
                                     ) {
         String providerToUse = provider != null ? provider : loadFlowService.getDefaultProvider();
-        List<UUID> otherNetworksUuids = otherNetworks != null ? otherNetworks.stream().map(UUID::fromString).collect(Collectors.toList()) : Collections.emptyList();
         LoadFlowRunContext loadFlowRunContext = LoadFlowRunContext.builder()
                 .networkUuid(networkUuid)
                 .variantId(variantId)
-                .otherNetworksUuids(otherNetworksUuids)
                 .receiver(receiver)
                 .provider(providerToUse)
                 .parameters(loadflowParams)
diff --git a/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowResultContext.java b/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowResultContext.java
index 30bc9e73..564da3d5 100644
--- a/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowResultContext.java
+++ b/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowResultContext.java
@@ -17,7 +17,6 @@
 
 import java.io.UncheckedIOException;
 import java.util.*;
-import java.util.stream.Collectors;
 
 import static org.gridsuite.loadflow.server.service.NotificationService.*;
 
@@ -44,16 +43,6 @@ public LoadFlowResultContext(UUID resultUuid, LoadFlowRunContext runContext) {
         this.runContext = Objects.requireNonNull(runContext);
     }
 
-    private static List<UUID> getHeaderList(MessageHeaders headers, String name) {
-        String header = (String) headers.get(name);
-        if (header == null || header.isEmpty()) {
-            return Collections.emptyList();
-        }
-        return Arrays.asList(header.split(",")).stream()
-                .map(UUID::fromString)
-                .collect(Collectors.toList());
-    }
-
     public static LoadFlowResultContext fromMessage(Message<String> message, ObjectMapper objectMapper) {
         Objects.requireNonNull(message);
         MessageHeaders headers = message.getHeaders();
@@ -64,8 +53,6 @@ public static LoadFlowResultContext fromMessage(Message<String> message, ObjectM
         String provider = (String) headers.get(HEADER_PROVIDER);
         String userId = (String) headers.get(HEADER_USER_ID);
 
-        List<UUID> otherNetworkUuids = getHeaderList(headers, "otherNetworkUuids");
-
         LoadFlowParametersInfos parameters;
         try {
             // can't use the following line because jackson doesn't unwrap null in the rootname
@@ -84,7 +71,6 @@ public static LoadFlowResultContext fromMessage(Message<String> message, ObjectM
                 LoadFlowRunContext.builder()
                         .networkUuid(networkUuid)
                         .variantId(variantId)
-                        .otherNetworksUuids(otherNetworkUuids)
                         .receiver(receiver)
                         .provider(provider)
                         .parameters(parameters)
@@ -110,7 +96,6 @@ public Message<String> toMessage(ObjectMapper objectMapper) {
                 .setHeader("resultUuid", resultUuid.toString())
                 .setHeader("networkUuid", runContext.getNetworkUuid().toString())
                 .setHeader(VARIANT_ID_HEADER, runContext.getVariantId())
-                .setHeader("otherNetworkUuids", runContext.getOtherNetworksUuids().stream().map(UUID::toString).collect(Collectors.joining(",")))
                 .setHeader(HEADER_RECEIVER, runContext.getReceiver())
                 .setHeader(HEADER_PROVIDER, runContext.getProvider())
                 .setHeader(HEADER_USER_ID, runContext.getUserId())
diff --git a/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowRunContext.java b/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowRunContext.java
index d2970917..a0da409d 100644
--- a/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowRunContext.java
+++ b/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowRunContext.java
@@ -15,7 +15,6 @@
 import org.gridsuite.loadflow.server.dto.LoadFlowParametersInfos;
 import org.gridsuite.loadflow.server.utils.ReportContext;
 
-import java.util.List;
 import java.util.UUID;
 
 /**
@@ -29,8 +28,6 @@ public class LoadFlowRunContext {
 
     private final String variantId;
 
-    private final List<UUID> otherNetworksUuids;
-
     private final String receiver;
 
     private final String provider;
diff --git a/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowWorkerService.java b/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowWorkerService.java
index 1be8522c..333f81b8 100644
--- a/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowWorkerService.java
+++ b/src/main/java/org/gridsuite/loadflow/server/service/LoadFlowWorkerService.java
@@ -12,7 +12,6 @@
 import com.powsybl.commons.reporter.Reporter;
 import com.powsybl.commons.reporter.ReporterModel;
 import com.powsybl.computation.local.LocalComputationManager;
-import com.powsybl.iidm.mergingview.MergingView;
 import com.powsybl.iidm.network.Network;
 import com.powsybl.iidm.network.VariantManagerConstants;
 import com.powsybl.loadflow.LoadFlow;
@@ -39,7 +38,6 @@
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantLock;
 import java.util.function.Consumer;
-import java.util.stream.Collectors;
 
 import static org.gridsuite.loadflow.server.service.LoadFlowRunContext.buildParameters;
 import static org.gridsuite.loadflow.server.service.NotificationService.FAIL_MESSAGE;
@@ -90,21 +88,6 @@ private Network getNetwork(UUID networkUuid, String variantId) {
         return network;
     }
 
-    private Network getNetwork(UUID networkUuid, List<UUID> otherNetworkUuids, String variantId) {
-        Network network = getNetwork(networkUuid, variantId);
-        if (otherNetworkUuids.isEmpty()) {
-            return network;
-        } else {
-            List<Network> otherNetworks = otherNetworkUuids.stream().map(uuid -> getNetwork(uuid, variantId)).collect(Collectors.toList());
-            List<Network> networks = new ArrayList<>();
-            networks.add(network);
-            networks.addAll(otherNetworks);
-            MergingView mergingView = MergingView.create("merge", "iidm");
-            mergingView.merge(networks.toArray(new Network[0]));
-            return mergingView;
-        }
-    }
-
     private CompletableFuture<LoadFlowResult> runLoadFlowAsync(
             Network network,
             String variantId,
@@ -131,6 +114,7 @@ private CompletableFuture<LoadFlowResult> runLoadFlowAsync(
     public LoadFlowResult run(Network network, LoadFlowRunContext context, UUID resultUuid) throws ExecutionException, InterruptedException {
         LoadFlowParameters params = buildParameters(context.getParameters(), context.getProvider());
         LOGGER.info("Run loadFlow...");
+
         String provider = context.getProvider();
 
         Reporter rootReporter = Reporter.NO_OP;
@@ -207,8 +191,7 @@ public Consumer<Message<String>> consumeRun() {
                 AtomicReference<Long> startTime = new AtomicReference<>();
 
                 startTime.set(System.nanoTime());
-                Network network = getNetwork(resultContext.getRunContext().getNetworkUuid(),
-                    resultContext.getRunContext().getOtherNetworksUuids(), resultContext.getRunContext().getVariantId());
+                Network network = getNetwork(resultContext.getRunContext().getNetworkUuid(), resultContext.getRunContext().getVariantId());
 
                 LoadFlowResult result = run(network, resultContext.getRunContext(), resultContext.getResultUuid());
                 long nanoTime = System.nanoTime();
diff --git a/src/test/java/org/gridsuite/loadflow/server/LoadFlowControllerTest.java b/src/test/java/org/gridsuite/loadflow/server/LoadFlowControllerTest.java
index 696a51a2..16e55d21 100644
--- a/src/test/java/org/gridsuite/loadflow/server/LoadFlowControllerTest.java
+++ b/src/test/java/org/gridsuite/loadflow/server/LoadFlowControllerTest.java
@@ -84,8 +84,6 @@ public class LoadFlowControllerTest {
     private static final UUID NETWORK_UUID = UUID.fromString("7928181c-7977-4592-ba19-88027e4254e4");
     private static final UUID RESULT_UUID = UUID.fromString("0c8de370-3e6c-4d72-b292-d355a97e0d5d");
     private static final UUID OTHER_RESULT_UUID = UUID.fromString("0c8de370-3e6c-4d72-b292-d355a97e0d5a");
-    private static final UUID NETWORK_FOR_MERGING_VIEW_UUID = UUID.fromString("11111111-7977-4592-ba19-88027e4254e4");
-    private static final UUID OTHER_NETWORK_FOR_MERGING_VIEW_UUID = UUID.fromString("22222222-7977-4592-ba19-88027e4254e4");
     private static final UUID REPORT_UUID = UUID.fromString("762b7298-8c0f-11ed-a1eb-0242ac120002");
 
     private static final String VARIANT_1_ID = "variant_1";
@@ -129,8 +127,6 @@ private static final class LimitViolationsMock {
     private ObjectMapper mapper;
     private Network network;
     private Network network1;
-    private Network networkForMergingView;
-    private Network otherNetworkForMergingView;
 
     private static void assertResultsEquals(LoadFlowResult result, org.gridsuite.loadflow.server.dto.LoadFlowResult resultDto) {
         assertEquals(result.getComponentResults().size(), resultDto.getComponentResults().size());
@@ -175,12 +171,6 @@ public void setUp() throws Exception {
 
         given(networkStoreService.getNetwork(NETWORK_UUID, PreloadingStrategy.ALL_COLLECTIONS_NEEDED_FOR_BUS_VIEW)).willReturn(network);
 
-        networkForMergingView = new NetworkFactoryImpl().createNetwork("mergingView", "test");
-        given(networkStoreService.getNetwork(NETWORK_FOR_MERGING_VIEW_UUID, PreloadingStrategy.ALL_COLLECTIONS_NEEDED_FOR_BUS_VIEW)).willReturn(networkForMergingView);
-
-        otherNetworkForMergingView = new NetworkFactoryImpl().createNetwork("other", "test 2");
-        given(networkStoreService.getNetwork(OTHER_NETWORK_FOR_MERGING_VIEW_UUID, PreloadingStrategy.ALL_COLLECTIONS_NEEDED_FOR_BUS_VIEW)).willReturn(otherNetworkForMergingView);
-
         network1 = EurostagTutorialExample1Factory.createWithMoreGenerators(new NetworkFactoryImpl());
         network1.getVariantManager().cloneVariant(VariantManagerConstants.INITIAL_VARIANT_ID, VARIANT_2_ID);
 
@@ -368,27 +358,6 @@ public void stopTest() throws Exception {
         }
     }
 
-    @SneakyThrows
-    @Test
-    public void mergingViewTest() {
-        LoadFlow.Runner runner = Mockito.mock(LoadFlow.Runner.class);
-        try (MockedStatic<LoadFlow> loadFlowMockedStatic = Mockito.mockStatic(LoadFlow.class)) {
-            loadFlowMockedStatic.when(() -> LoadFlow.find(any())).thenReturn(runner);
-            Mockito.when(runner.runAsync(eq(network), eq(VARIANT_2_ID), eq(LocalComputationManager.getDefault()),
-                            any(LoadFlowParameters.class), any(Reporter.class)))
-                    .thenReturn(CompletableFuture.completedFuture(LoadFlowResultMock.RESULT));
-
-            MvcResult result = mockMvc.perform(post(
-                            "/" + VERSION + "/networks/{networkUuid}/run-and-save?receiver=me&networkUuid=" + NETWORK_FOR_MERGING_VIEW_UUID, OTHER_NETWORK_FOR_MERGING_VIEW_UUID)
-                            .header(HEADER_USER_ID, "userId"))
-                    .andExpect(status().isOk())
-                    .andExpect(content().contentType(MediaType.APPLICATION_JSON))
-                    .andReturn();
-
-            assertEquals(RESULT_UUID, mapper.readValue(result.getResponse().getContentAsString(), UUID.class));
-        }
-    }
-
     @SneakyThrows
     @Test
     public void testStatus() {