diff --git a/platform/platform-impl/api-dump-unreviewed.txt b/platform/platform-impl/api-dump-unreviewed.txt
index 7c47e2448490..16d8f9187a3e 100644
--- a/platform/platform-impl/api-dump-unreviewed.txt
+++ b/platform/platform-impl/api-dump-unreviewed.txt
@@ -11065,6 +11065,7 @@ f:com.intellij.openapi.updateSettings.impl.pluginsAdvertisement.PluginsAdvertise
 - sf:setIgnoreIdeSuggestion(Z):V
 f:com.intellij.openapi.updateSettings.impl.pluginsAdvertisement.PluginsAdvertiserDialog
 - com.intellij.openapi.ui.DialogWrapper
+- <init>(com.intellij.openapi.project.Project,java.util.Collection):V
 - <init>(com.intellij.openapi.project.Project,java.util.Collection,java.util.List):V
 - doInstallPlugins(Z,com.intellij.openapi.application.ModalityState):V
 - getPreferredFocusedComponent():javax.swing.JComponent
diff --git a/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/InstallAndEnableTask.java b/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/InstallAndEnableTask.java
index 4bc65503cb54..c9be0cd767f6 100644
--- a/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/InstallAndEnableTask.java
+++ b/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/InstallAndEnableTask.java
@@ -1,8 +1,11 @@
-// Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.openapi.updateSettings.impl.pluginsAdvertisement;
 
 import com.intellij.ide.IdeBundle;
-import com.intellij.ide.plugins.*;
+import com.intellij.ide.plugins.IdeaPluginDescriptor;
+import com.intellij.ide.plugins.PluginManagementPolicy;
+import com.intellij.ide.plugins.PluginManagerCore;
+import com.intellij.ide.plugins.PluginNode;
 import com.intellij.ide.plugins.marketplace.IdeCompatibleUpdate;
 import com.intellij.ide.plugins.marketplace.MarketplaceRequests;
 import com.intellij.ide.plugins.newui.PluginDetailsPageComponent;
@@ -19,7 +22,6 @@ import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
 import java.util.HashSet;
-import java.util.List;
 import java.util.Set;
 
 @ApiStatus.Internal
@@ -31,7 +33,6 @@ public final class InstallAndEnableTask extends Task.Modal {
   private final Runnable myOnSuccess;
 
   private final Set<PluginDownloader> myPlugins = new HashSet<>();
-  private @Nullable List<PluginNode> myCustomPlugins;
 
   InstallAndEnableTask(@Nullable Project project,
                        @NotNull Set<PluginId> pluginIds,
@@ -50,11 +51,7 @@ public final class InstallAndEnableTask extends Task.Modal {
   @Override
   public void run(@NotNull ProgressIndicator indicator) {
     try {
-      List<PluginNode> marketplacePlugins = MarketplaceRequests.loadLastCompatiblePluginDescriptors(myPluginIds);
-      myCustomPlugins = RepositoryHelper.loadPluginsFromCustomRepositories(indicator);
-
-      List<IdeaPluginDescriptor> descriptors =
-        new ArrayList<>(RepositoryHelper.mergePluginsFromRepositories(marketplacePlugins, myCustomPlugins, true));
+      var descriptors = new ArrayList<IdeaPluginDescriptor>(MarketplaceRequests.loadLastCompatiblePluginDescriptors(myPluginIds));
 
       if (myShowDialog) {
         MarketplaceRequests marketplace = MarketplaceRequests.getInstance();
@@ -99,15 +96,7 @@ public final class InstallAndEnableTask extends Task.Modal {
 
   @Override
   public void onSuccess() {
-    if (myCustomPlugins == null) {
-      return;
-    }
-
-    new PluginsAdvertiserDialog(myProject,
-                                myPlugins,
-                                myCustomPlugins,
-                                mySelectAllInDialog,
-                                this::runOnSuccess)
+    new PluginsAdvertiserDialog(myProject, myPlugins, mySelectAllInDialog, this::runOnSuccess)
       .doInstallPlugins(myShowDialog, myModalityState);
   }
 
@@ -117,6 +106,5 @@ public final class InstallAndEnableTask extends Task.Modal {
     }
   }
 
-  public Set<PluginDownloader> getPlugins() { return myPlugins; }
-  public @Nullable List<PluginNode> getCustomPlugins() { return myCustomPlugins; }
+  public @NotNull Set<PluginDownloader> getPlugins() { return myPlugins; }
 }
diff --git a/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/PluginsAdvertiserDialog.java b/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/PluginsAdvertiserDialog.java
index 6fcf63d6a8ca..f489a218013d 100644
--- a/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/PluginsAdvertiserDialog.java
+++ b/platform/platform-impl/src/com/intellij/openapi/updateSettings/impl/pluginsAdvertisement/PluginsAdvertiserDialog.java
@@ -1,4 +1,4 @@
-// Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.openapi.updateSettings.impl.pluginsAdvertisement;
 
 import com.intellij.ide.IdeBundle;
@@ -21,20 +21,19 @@ import java.util.function.Predicate;
 public final class PluginsAdvertiserDialog extends DialogWrapper {
   private final Collection<PluginDownloader> myPluginToInstall;
   private final @Nullable Project myProject;
-  private final @NotNull List<PluginNode> myCustomPlugins;
   private final @Nullable Consumer<Boolean> myFinishFunction;
   private final boolean mySelectAllSuggestions;
   private @Nullable DetectedPluginsPanel myPanel;
 
-  PluginsAdvertiserDialog(@Nullable Project project,
-                          @NotNull Collection<PluginDownloader> pluginsToInstall,
-                          @NotNull List<PluginNode> customPlugins,
-                          boolean selectAllSuggestions,
-                          @Nullable Consumer<Boolean> finishFunction) {
+  PluginsAdvertiserDialog(
+    @Nullable Project project,
+    @NotNull Collection<PluginDownloader> pluginsToInstall,
+    boolean selectAllSuggestions,
+    @Nullable Consumer<Boolean> finishFunction
+  ) {
     super(project);
     myProject = project;
     myPluginToInstall = pluginsToInstall;
-    myCustomPlugins = customPlugins;
     myFinishFunction = finishFunction;
     mySelectAllSuggestions = selectAllSuggestions;
     setTitle(IdeBundle.message("dialog.title.choose.plugins.to.install.or.enable"));
@@ -46,10 +45,17 @@ public final class PluginsAdvertiserDialog extends DialogWrapper {
     }
   }
 
-  public PluginsAdvertiserDialog(@Nullable Project project,
-                                 @NotNull Collection<PluginDownloader> pluginsToInstall,
-                                 @NotNull List<PluginNode> customPlugins) {
-    this(project, pluginsToInstall, customPlugins, false, null);
+  public PluginsAdvertiserDialog(@Nullable Project project, @NotNull Collection<PluginDownloader> pluginsToInstall) {
+    this(project, pluginsToInstall, false, null);
+  }
+
+  /**
+   * @deprecated custom repositories are no longer supported by the plugin advertiser;
+   * use {@link #PluginsAdvertiserDialog(Project, Collection<PluginDownloader>)} instead.
+   */
+  @Deprecated(forRemoval = true)
+  public PluginsAdvertiserDialog(@Nullable Project project, @NotNull Collection<PluginDownloader> pluginsToInstall, @NotNull List<PluginNode> ignored) {
+    this(project, pluginsToInstall, false, null);
   }
 
   @Override
@@ -96,7 +102,7 @@ public final class PluginsAdvertiserDialog extends DialogWrapper {
   }
 
   private boolean doInstallPlugins(@NotNull Predicate<? super PluginDownloader> predicate, @NotNull ModalityState modalityState) {
-    return new PluginsAdvertiserDialogPluginInstaller(myProject, myPluginToInstall, myCustomPlugins, myFinishFunction)
+    return new PluginsAdvertiserDialogPluginInstaller(myProject, myPluginToInstall, List.of(), myFinishFunction)
       .doInstallPlugins(predicate, modalityState);
   }
 }
diff --git a/plugins/ide-startup/importSettings/src/com/intellij/ide/startup/importSettings/transfer/backend/providers/ImportPerformer.kt b/plugins/ide-startup/importSettings/src/com/intellij/ide/startup/importSettings/transfer/backend/providers/ImportPerformer.kt
index 46ec93be16c8..d12c930d0a28 100644
--- a/plugins/ide-startup/importSettings/src/com/intellij/ide/startup/importSettings/transfer/backend/providers/ImportPerformer.kt
+++ b/plugins/ide-startup/importSettings/src/com/intellij/ide/startup/importSettings/transfer/backend/providers/ImportPerformer.kt
@@ -77,9 +77,8 @@ class DefaultImportPerformer(private val partials: Collection<PartialImportPerfo
     installAndEnableTask.run(pi)
 
     if (installAndEnableTask.plugins.isEmpty()) return PluginInstallationState.NoPlugins
-    val cp = installAndEnableTask.customPlugins ?: return PluginInstallationState.NoPlugins
     val restartRequiringPlugins = AtomicInteger()
-    val installStatus = doInstallPlugins(project, installAndEnableTask.plugins, cp, pi, restartRequiringPlugins)
+    val installStatus = doInstallPlugins(project, installAndEnableTask.plugins, pi, restartRequiringPlugins)
 
     logger.info("Finished installing plugins, result: $installStatus")
     return if (restartRequiringPlugins.get() > 0) PluginInstallationState.RestartRequired else PluginInstallationState.Done
@@ -116,13 +115,12 @@ class DefaultImportPerformer(private val partials: Collection<PartialImportPerfo
 private suspend fun doInstallPlugins(
   project: Project?,
   plugins: Collection<PluginDownloader>,
-  customPlugins: List<PluginNode>,
   pi: ProgressIndicator,
   restartRequiringPlugins: AtomicInteger): Boolean = coroutineScope {
   val scope = this
 
   fun createInstaller(finished: CompletableDeferred<Boolean>) =
-    object : PluginsAdvertiserDialogPluginInstaller(project, plugins, customPlugins, finished::complete) {
+    object : PluginsAdvertiserDialogPluginInstaller(project, plugins, emptyList(), finished::complete) {
       override fun downloadPlugins(plugins: MutableList<PluginNode>,
                                    customPlugins: MutableCollection<PluginNode>,
                                    onSuccess: Runnable?,
@@ -183,4 +181,4 @@ private suspend fun doDownloadPlugins(
   }
 
   return success
-}
\ No newline at end of file
+}