diff --git a/app/controllers/repository_row_connections_controller.rb b/app/controllers/repository_row_connections_controller.rb
index 124d8666a..c93d6e205 100644
--- a/app/controllers/repository_row_connections_controller.rb
+++ b/app/controllers/repository_row_connections_controller.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
 class RepositoryRowConnectionsController < ApplicationController
-  before_action :load_repository, except: %i(repositories)
+  before_action :load_repository, except: :repositories
   before_action :load_create_vars, only: :create
   before_action :check_read_permissions, except: :repositories
-  before_action :load_repository_row, except: %i(repositories repository_rows)
+  before_action :load_repository_row, except: :repositories
   before_action :check_manage_permissions, only: %i(create destroy)
 
   def index
@@ -97,11 +97,16 @@ class RepositoryRowConnectionsController < ApplicationController
   end
 
   def repository_rows
-    repository_rows = @repository.repository_rows
-                                 .search_by_name_and_id(current_user, current_user.teams, params[:query])
-                                 .order(name: :asc)
-                                 .page(params[:page] || 1)
-                                 .per(Constants::SEARCH_LIMIT)
+    selected_repository = Repository.accessible_by_teams(current_team).find(params[:selected_repository_id])
+
+    repository_rows = selected_repository.repository_rows
+                                         .where.not(id: @repository_row.id)
+                                         .where.not(id: @repository_row.parent_connections.select(:parent_id))
+                                         .where.not(id: @repository_row.child_connections.select(:child_id))
+                                         .search_by_name_and_id(current_user, current_user.teams, params[:query])
+                                         .order(name: :asc)
+                                         .page(params[:page] || 1)
+                                         .per(Constants::SEARCH_LIMIT)
     render json: {
       data: repository_rows.select(:id, :name, :archived, :repository_id)
                            .preload(:repository)
diff --git a/app/javascript/vue/item_relationships/RepositoryItemRelationshipsModal.vue b/app/javascript/vue/item_relationships/RepositoryItemRelationshipsModal.vue
index 027fd6b5b..24c2ad97c 100644
--- a/app/javascript/vue/item_relationships/RepositoryItemRelationshipsModal.vue
+++ b/app/javascript/vue/item_relationships/RepositoryItemRelationshipsModal.vue
@@ -130,15 +130,13 @@
 import SelectSearch from '../shared/select_search.vue';
 import ChecklistSearch from '../shared/checklist_search.vue';
 import Select from '../shared/select.vue';
-import ChecklistSelect from '../shared/checklist_select.vue';
 
 export default {
   name: 'RepositoryItemRelationshipsModal',
   components: {
     'select-search': SelectSearch,
     ChecklistSearch,
-    Select,
-    'checklist-select': ChecklistSelect
+    Select
   },
   created() {
     window.repositoryItemRelationshipsModal = this;
@@ -174,7 +172,10 @@ export default {
 
       this.loadingInventories = true;
       $.ajax({
-        url: `${this.inventoriesUrl}?page=${this.nextInventoriesPage}`,
+        url: this.inventoriesUrl,
+        data: {
+          page: this.nextInventoriesPage
+        },
         success: (result) => {
           this.inventoryOptions = this.inventoryOptions.concat(result.data.map((val) => [val.id, val.name]));
           this.loadingInventories = false;
@@ -187,7 +188,11 @@ export default {
 
       this.loadingItems = true;
       $.ajax({
-        url: `${this.inventoryItemsUrl}/?page=${this.nextItemsPage}&repository_id=${inventoryValue}`,
+        url: this.inventoryItemsUrl,
+        data: {
+          page: this.nextItemsPage,
+          selected_repository_id: inventoryValue
+        },
         success: (result) => {
           this.itemOptions = this.itemOptions.concat(result.data.map((val) => ({ id: val.id, label: val.name })));
           this.loadingItems = false;
@@ -237,7 +242,7 @@ export default {
       this.nextItemsPage = 1;
       if (value) {
         this.loadingItems = true;
-        this.itemParams = [`repository_id=${value}`];
+        this.itemParams = { selected_repository_id: value };
       }
       this.$nextTick(() => {
         this.fetchInventoryItems(value);
diff --git a/app/javascript/vue/shared/checklist_search.vue b/app/javascript/vue/shared/checklist_search.vue
index 496d90262..f7301d374 100644
--- a/app/javascript/vue/shared/checklist_search.vue
+++ b/app/javascript/vue/shared/checklist_search.vue
@@ -81,7 +81,7 @@ export default {
         return;
       }
 
-      if (this.optionsUrlValue) {
+      if (this.optionsUrl) {
         // reset current options and next page when lazy loading is enabled
         if (this.lazyLoadEnabled) {
           this.currentOptions = [];
@@ -106,14 +106,6 @@ export default {
         return this.currentOptions.find(({ id }) => id === this.selectedValues[0])?.label;
       }
       return `${this.selectedValues.length} ${this.i18n.t('general.options_selected')}`;
-    },
-    optionsUrlValue() {
-      if (!this.optionsUrl) return '';
-
-      let url = `${this.optionsUrl}?query=${this.query || ''}`;
-      if (this.lazyLoadEnabled && this.nextPage) url = `${url}&page=${this.nextPage}`;
-      if (this.params.length) url = `${url}&${this.params.join('&')}`;
-      return url;
     }
   },
   methods: {
@@ -128,7 +120,12 @@ export default {
       if (!this.nextPage || !this.optionsUrl) return;
 
       $.ajax({
-        url: this.optionsUrlValue,
+        url: this.optionsUrl,
+        data: {
+          ...(this.query && { query: this.query }),
+          ...(this.lazyLoadEnabled && this.nextPage && { page: this.nextPage }),
+          ...this.params
+        },
         success: (result) => {
           if (this.lazyLoadEnabled) {
             this.nextPage = result.next_page;
diff --git a/app/views/repository_rows/show.json.jbuilder b/app/views/repository_rows/show.json.jbuilder
index 5b185d295..d9e4e9a47 100644
--- a/app/views/repository_rows/show.json.jbuilder
+++ b/app/views/repository_rows/show.json.jbuilder
@@ -31,7 +31,8 @@ json.actions do
   end
   json.row_connections do
     json.inventories_url repository_row_connections_repositories_url
-    json.inventory_items_url repository_row_connections_repository_rows_url
+    json.inventory_items_url repository_rows_repository_repository_row_repository_row_connections_path(@repository,
+                                                                                                       @repository_row)
     json.create_url repository_repository_row_repository_row_connections_url(@repository, @repository_row)
   end
 end
diff --git a/config/routes.rb b/config/routes.rb
index fef7039ca..8ac1b373d 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -735,7 +735,11 @@ Rails.application.routes.draw do
           get :actions_toolbar
         end
 
-        resources :repository_row_connections, only: %i(index create destroy)
+        resources :repository_row_connections, only: %i(index create destroy) do
+          collection do
+            get :repository_rows
+          end
+        end
         member do
           get 'repository_stock_value/new', to: 'repository_stock_values#new', as: 'new_repository_stock'
           get 'repository_stock_value/edit', to: 'repository_stock_values#edit', as: 'edit_repository_stock'
@@ -792,7 +796,6 @@ Rails.application.routes.draw do
 
     namespace :repository_row_connections do
       get :repositories
-      get :repository_rows
     end
 
     resources :connected_devices, controller: 'users/connected_devices', only: %i(destroy)
diff --git a/spec/controllers/repository_row_connections_controller_spec.rb b/spec/controllers/repository_row_connections_controller_spec.rb
index 5426baa7f..1a93e2670 100644
--- a/spec/controllers/repository_row_connections_controller_spec.rb
+++ b/spec/controllers/repository_row_connections_controller_spec.rb
@@ -123,14 +123,44 @@ describe RepositoryRowConnectionsController, type: :controller do
   end
 
   describe 'GET #repository_rows' do
+    let!(:child_repository_row) { create :repository_row, repository: repository }
+    let!(:parent_repository_row) { create :repository_row, repository: repository }
+
+    let!(:child_connection) do
+      create :repository_row_connection,
+             parent: repository_row,
+             child: child_repository_row,
+             created_by: user,
+             last_modified_by: user
+    end
+    let!(:parent_connection) do
+      create :repository_row_connection,
+             child: repository_row,
+             parent: parent_repository_row,
+             created_by: user,
+             last_modified_by: user
+    end
+
     it 'returns a successful response' do
-      get :repository_rows, format: :json, params: { repository_id: repository.id }
+      get :repository_rows, format: :json, params: {
+        repository_id: repository.id,
+        repository_row_id: repository_row.id,
+        selected_repository_id: repository.id
+      }
       expect(response).to have_http_status(:success)
     end
 
     it 'returns the correct data structure' do
-      get :repository_rows, format: :json, params: { repository_id: repository.id }
-      expect(response.body).to include(repository_row.name)
+      get :repository_rows, format: :json, params: {
+        repository_id: repository.id,
+        repository_row_id: repository_row.id,
+        selected_repository_id: repository.id
+      }
+
+      expect(response.body).not_to include(repository_row.name)
+      expect(response.body).not_to include(child_repository_row.name)
+      expect(response.body).not_to include(parent_repository_row.name)
+      expect(response.body).to include(other_repository_row.name)
     end
   end
 end