diff --git a/app/assets/javascripts/users/settings/teams/show.js b/app/assets/javascripts/users/settings/teams/show.js
index 8d3b65104..051677128 100644
--- a/app/assets/javascripts/users/settings/teams/show.js
+++ b/app/assets/javascripts/users/settings/teams/show.js
@@ -110,10 +110,9 @@
       function(e, data) {
         // Populate the modal heading & body
         var modal = $('#destroy-user-team-modal');
-        var modalHeading = modal.find('.modal-header').find('.modal-title');
-        var modalBody = modal.find('.modal-body');
-        modalHeading.text($('<div>').html(data.heading).text());
-        modalBody.html(data.html);
+        const modalContent = modal.find('.modal-content');
+
+        modalContent.html(data.html);
 
         // Show the modal
         modal.modal('show');
@@ -122,13 +121,14 @@
       'ajax:error',
       "[data-action='destroy-user-team']",
       function() {
-        // TODO
+        HelperModule.flashAlertMsg(I18n.t('users.settings.user_teams.general_error'), 'danger');
       }
     );
 
     // Also, bind the click action on the modal
     $('#destroy-user-team-modal')
       .on('click', "[data-action='submit']", function() {
+        animateSpinner();
         var btn = $(this);
         var form = btn
           .closest('.modal')
@@ -154,14 +154,16 @@
         // Hide the modal
         modal.modal('hide');
 
+        animateSpinner(null, false);
         // Reload the whole table
-        usersDatatable.ajax.reload();
+        location.reload();
       }
     ).on(
       'ajax:error',
       "[data-id='destroy-user-team-form']",
       function() {
-        // TODO
+        animateSpinner(null, false);
+        HelperModule.flashAlertMsg(I18n.t('users.settings.user_teams.general_error'), 'danger');
       }
     );
   }
diff --git a/app/controllers/users/settings/user_teams_controller.rb b/app/controllers/users/settings/user_teams_controller.rb
index 9118f81d4..536dac21b 100644
--- a/app/controllers/users/settings/user_teams_controller.rb
+++ b/app/controllers/users/settings/user_teams_controller.rb
@@ -48,14 +48,9 @@ module Users
         render json: {
           html: render_to_string(
             partial: 'users/settings/user_teams/' \
-                      'destroy_user_team_modal_body',
+                     'destroy_user_team_modal_body',
             locals: { user_assignment: @user_assignment },
             formats: :html
-          ),
-          heading: I18n.t(
-            'users.settings.user_teams.destroy_uo_heading',
-            user: escape_input(@user_assignment.user.full_name),
-            team: escape_input(@user_assignment.assignable.name)
           )
         }
       end
@@ -63,29 +58,12 @@ module Users
       def destroy
         # If user is last administrator of team,
         # he/she cannot be deleted from it.
-        invalid =
-          managing_team_user_roles_collection.include?(@user_assignment.user_role) &&
-          @user_assignment
-          .assignable
-          .user_assignments
-          .where(user_role: managing_team_user_roles_collection)
-          .count <= 1
+        invalid = @user_assignment.last_with_permission?(TeamPermissions::USERS_MANAGE)
 
         unless invalid
           begin
             @user_assignment.transaction do
-              # If user leaves on his/her own accord,
-              # new owner for projects is the first
-              # administrator of team
               if params[:leave]
-                new_owner =
-                  @user_assignment
-                  .assignable
-                  .user_assignments
-                  .where(user_role: managing_team_user_roles_collection)
-                  .where.not(id: @user_assignment.id)
-                  .first
-                  .user
                 Activities::CreateActivityService
                   .call(activity_type: :user_leave_team,
                         owner: current_user,
@@ -95,10 +73,6 @@ module Users
                           team: @user_assignment.assignable.id
                         })
               else
-                # Otherwise, the new owner for projects is
-                # the current user (= an administrator removing
-                # the user from the team)
-                new_owner = current_user
                 Activities::CreateActivityService
                   .call(activity_type: :remove_user_from_team,
                         owner: current_user,
@@ -110,8 +84,7 @@ module Users
                         })
               end
               reset_user_current_team(@user_assignment)
-
-              remove_user_from_team!(@user_assignment, new_owner)
+              @user_assignment.destroy!
             end
           rescue StandardError => e
             Rails.logger.error e.message
@@ -119,21 +92,27 @@ module Users
           end
         end
 
-        if !invalid
-          if params[:leave]
-            flash[:notice] = I18n.t(
-              'users.settings.user_teams.leave_flash',
-              team: @user_assignment.assignable.name
-            )
-            flash.keep(:notice)
-          end
+        if invalid
+          render json: @user_assignment.errors, status: :unprocessable_entity
+        else
+          flash[:success] = if params[:leave]
+                              I18n.t(
+                                'users.settings.user_teams.leave_flash',
+                                team: @user_assignment.assignable.name
+                              )
+                            else
+                              I18n.t(
+                                'users.settings.user_teams.remove_flash',
+                                user: @user_assignment.user.full_name,
+                                team: @user_assignment.assignable.name
+                              )
+                            end
+
           generate_notification(current_user,
                                 @user_assignment.user,
                                 @user_assignment.assignable,
                                 false)
           render json: { status: :ok }
-        else
-          render json: @user_assignment.errors, status: :unprocessable_entity
         end
       end
 
@@ -165,33 +144,6 @@ module Users
         user_assignment.user.current_team_id = ids.first
         user_assignment.user.save
       end
-
-      def remove_user_from_team!(user_assignment, new_owner)
-        return user_assignment.destroy! unless new_owner
-
-        # Also, make new owner author of all protocols that belong
-        # to the departing user and belong to this team.
-        p_ids = user_assignment.user.added_protocols.where(team: user_assignment.assignable).pluck(:id)
-        Protocol.where(id: p_ids).find_each do |protocol|
-          protocol.record_timestamps = false
-          protocol.added_by = new_owner
-          protocol.archived_by = new_owner if protocol.archived_by == user_assignment.user
-          protocol.restored_by = new_owner if protocol.restored_by == user_assignment.user
-          protocol.save!(validate: false)
-          protocol.user_assignments.find_by(user: new_owner)&.destroy!
-          protocol.user_assignments.create!(
-            user: new_owner,
-            user_role: UserRole.find_predefined_owner_role,
-            assigned: :manually
-          )
-        end
-
-        # Make new owner author of all inventory items that were added
-        # by departing user and belong to this team.
-        RepositoryRow.change_owner(user_assignment.assignable, user_assignment.user, new_owner)
-
-        user_assignment.destroy!
-      end
     end
   end
 end
diff --git a/app/views/users/settings/teams/_user_dropdown.html.erb b/app/views/users/settings/teams/_user_dropdown.html.erb
index 587e5c096..b4c1a25eb 100644
--- a/app/views/users/settings/teams/_user_dropdown.html.erb
+++ b/app/views/users/settings/teams/_user_dropdown.html.erb
@@ -1,5 +1,5 @@
 <% if user_assignment.user == user %>
-  <button class="btn btn-light btn-xs icon-btn" type="button" disabled="disabled">
+  <button class="btn btn-light btn-xs icon-btn" id="leave-team-btn" type="button" disabled="disabled">
     <span class="sn-icon sn-icon-down"></span>
   </button>
 <% else %>
diff --git a/app/views/users/settings/user_teams/_destroy_user_team_modal.html.erb b/app/views/users/settings/user_teams/_destroy_user_team_modal.html.erb
index 7d686a3c1..f857ddeda 100644
--- a/app/views/users/settings/user_teams/_destroy_user_team_modal.html.erb
+++ b/app/views/users/settings/user_teams/_destroy_user_team_modal.html.erb
@@ -5,18 +5,6 @@
      aria-labelledby="destroy-user-team-modal-label">
   <div class="modal-dialog" role="document">
     <div class="modal-content">
-      <div class="modal-header">
-        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><i class="sn-icon sn-icon-close"></i></button>
-        <h4 class="modal-title" id="destroy-user-team-modal-label">
-        </h4>
-      </div>
-      <div class="modal-body"></div>
-      <div class="modal-footer">
-        <button type="button" class="btn btn-secondary" data-dismiss="modal"><%=t 'general.cancel' %></button>
-        <button type="button"
-                class="btn btn-danger"
-                data-action="submit"><%=t 'users.settings.user_teams.destroy_uo_confirm' %></button>
-      </div>
     </div>
   </div>
 </div>
diff --git a/app/views/users/settings/user_teams/_destroy_user_team_modal_body.html.erb b/app/views/users/settings/user_teams/_destroy_user_team_modal_body.html.erb
index fe336e059..44da504d5 100644
--- a/app/views/users/settings/user_teams/_destroy_user_team_modal_body.html.erb
+++ b/app/views/users/settings/user_teams/_destroy_user_team_modal_body.html.erb
@@ -1,21 +1,28 @@
-<%= form_with model: user_assignment,
-              url: destroy_user_team_path(user_assignment, format: :json),
-              data: { remote: true, id: 'destroy-user-team-form' },
-              method: :delete do |f| %>
-  <p><%= t("users.settings.user_teams.destroy_uo_message",
+<div class="modal-header">
+  <button type="button" class="close" data-dismiss="modal" aria-label="Close"><i class="sn-icon sn-icon-close"></i></button>
+  <h4 class="modal-title" id="destroy-user-team-modal-label">
+    <%= t('users.settings.user_teams.destroy_uo_heading',
            user: user_assignment.user.full_name,
-           team: user_assignment.assignable.name) %></p>
-  <% if user_assignment.user.confirmed? %>
-    <div class="alert alert-danger" role="alert">
-      <span class="fas fa-exclamation-triangle"></span>
-      &nbsp;
-      <%= t("users.settings.user_teams.destroy_uo_alert_heading") %>
-      <ul>
-        <li><%= t("users.settings.user_teams.destroy_uo_alert_line_1") %></li>
-        <li><%= t("users.settings.user_teams.destroy_uo_alert_line_2").html_safe %></li>
-        <li><%= t("users.settings.user_teams.destroy_uo_alert_line_3") %></li>
-        <li><%= t("users.settings.user_teams.destroy_uo_alert_line_4") %></li>
-      </ul>
+           team: user_assignment.assignable.name,
+           role: user_assignment.user_role.name.downcase) %>
+  </h4>
+  </div>
+<div class="modal-body">
+  <%= form_with model: user_assignment,
+                url: destroy_user_team_path(user_assignment, format: :json),
+                data: { remote: true, id: 'destroy-user-team-form' },
+                method: :delete do |f| %>
+    <div class='flex flex-col gap-6'>
+      <div><%= t("users.settings.user_teams.destroy_message", role: user_assignment.user_role.name.downcase) %></div>
+      <div><%= t("users.settings.user_teams.message_owner") %></div>
+      <div><%= t("users.settings.user_teams.message_alert") %></div>
     </div>
   <% end %>
-<% end %>
+</div>
+<div class="modal-footer">
+  <button type="button" class="btn btn-secondary" data-dismiss="modal"><%=t 'general.cancel' %></button>
+  <button type="button"
+          class="btn btn-danger"
+          data-action="submit"><%=t 'users.settings.user_teams.destroy_uo_confirm' %>
+  </button>
+</div>
diff --git a/app/views/users/settings/user_teams/_leave_user_team_modal_body.html.erb b/app/views/users/settings/user_teams/_leave_user_team_modal_body.html.erb
index 93170c5c7..4d6e0f85a 100644
--- a/app/views/users/settings/user_teams/_leave_user_team_modal_body.html.erb
+++ b/app/views/users/settings/user_teams/_leave_user_team_modal_body.html.erb
@@ -4,16 +4,9 @@
               method: :delete,
               data: { id: 'leave-user-team-form' } do |f| %>
   <%= hidden_field_tag :leave, true %>
-  <p><%= t("users.settings.user_teams.leave_uo_message", team: @user_assignment.team.name) %></p>
-  <div class="alert alert-danger" role="alert">
-    <span class="fas fa-exclamation-triangle"></span>
-    &nbsp;
-    <%= t("users.settings.user_teams.leave_uo_alert_heading") %>
-    <ul>
-      <li><%= t("users.settings.user_teams.leave_uo_alert_line_1") %></li>
-      <li><%= t("users.settings.user_teams.leave_uo_alert_line_2").html_safe %></li>
-      <li><%= t("users.settings.user_teams.leave_uo_alert_line_3")%></li>
-      <li><%= t("users.settings.user_teams.leave_uo_alert_line_4")%></li>
-    </ul>
+  <div class='flex flex-col gap-6'>
+    <div><%= t("users.settings.user_teams.leave_message") %></div>
+    <div><%= t("users.settings.user_teams.message_owner") %></div>
+    <div><%= t("users.settings.user_teams.message_alert") %></div>
   </div>
 <% end %>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 2b829dca5..bbebe8cdf 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -2988,22 +2988,17 @@ en:
             flash_success: "Team %{team} was successfully deleted."
       user_teams:
         leave_uo_heading: "Leave team %{team}"
-        leave_uo_message: "Are you sure you wish to leave team %{team}? This action is irreversible."
-        leave_uo_alert_heading: "Leaving team has following consequences:"
-        leave_uo_alert_line_1: "you will lose access to all content belonging to the team (including projects, tasks, protocols and activities);"
-        leave_uo_alert_line_2: "all projects in the team where you were the sole <b>Owner</b> will receive a new owner from the team administrators;"
-        leave_uo_alert_line_3: "all repository protocols in the team belonging to you will be reassigned onto a new owner from team administrators;"
-        leave_uo_alert_line_4: "all inventory items in the team added by you will be reassigned onto a new owner from team administrators."
-        leave_uo_confirm: "Leave"
-        destroy_uo_heading: "Remove user %{user} from team %{team}"
-        destroy_uo_message: "Are you sure you wish to remove user %{user} from team %{team}?"
-        destroy_uo_alert_heading: "Removing user from team has following consequences:"
-        destroy_uo_alert_line_1: "user will lose access to all content belonging to the team (including projects, tasks, protocols and activities);"
-        destroy_uo_alert_line_2: "all projects in the team where user was the sole <b>Owner</b> will be reassigned onto you as a new owner;"
-        destroy_uo_alert_line_3: "all repository protocols in the team belonging to user will be reassigned onto you;"
-        destroy_uo_alert_line_4: "all inventory items in the team added by user will be reassigned onto you."
+        leave_message: "You will lose access to all content associated with the team, including projects, inventories, and protocol templates."
+        destroy_message: 'Removing a team %{role} will revoke their access to all content associated with the team, including projects, inventories, and protocol templates.'
+        leave_uo_confirm: "Leave team"
+        destroy_uo_heading: "Remove team %{role} %{user} from team %{team}"
+        message_owner: "Other team owner(s) will be able to view and manage access to the content."
+        message_alert: "This action cannot be undone."
+        destroy_uo_alert_line_3: "This action cannot be undone."
         destroy_uo_confirm: "Remove"
-        leave_flash: "Successfully left team %{team}."
+        leave_flash: "You have left %{team}."
+        remove_flash: "%{user} has been successfully removed from the team %{team}"
+        general_error: "Something went wrong"
 
   user_roles:
     predefined: