diff --git a/doc/development/telemetry/usage_ping.md b/doc/development/telemetry/usage_ping.md
index 2427b82b8a87f950cb1634b326f9e12472d27235..cd6d003155f74a4c543152dc9e68845c537862ca 100644
--- a/doc/development/telemetry/usage_ping.md
+++ b/doc/development/telemetry/usage_ping.md
@@ -513,8 +513,6 @@ appear to be associated to any of the services running, since they all appear to
 | `projects_unify_circuit_active`                           | `counts`                             |               |                  |         |                                                                            |
 | `projects_webex_teams_active`                             | `counts`                             |               |                  |         |                                                                            |
 | `projects_youtrack_active`                                | `counts`                             |               |                  |         |                                                                            |
-| `projects_slack_notifications_active`                     | `counts`                             |               |                  |         |                                                                            |
-| `projects_slack_slash_active`                             | `counts`                             |               |                  |         |                                                                            |
 | `projects_jira_server_active`                             | `counts`                             |               |                  |         |                                                                            |
 | `projects_jira_cloud_active`                              | `counts`                             |               |                  |         |                                                                            |
 | `projects_jira_dvcs_cloud_active`                         | `counts`                             |               |                  |         |                                                                            |
diff --git a/lib/gitlab/usage_data.rb b/lib/gitlab/usage_data.rb
index 38ca70e755c8e7124cb0f4fd2d757a9ef66554d6..71c15f7ca276f59717531ad8b36cbec93327d6e1 100644
--- a/lib/gitlab/usage_data.rb
+++ b/lib/gitlab/usage_data.rb
@@ -347,15 +347,9 @@ def container_expiration_policies_usage
 
       # rubocop: disable CodeReuse/ActiveRecord
       def services_usage
-        results = Service.available_services_names.without('jira').each_with_object({}) do |service_name, response|
+        Service.available_services_names.without('jira').each_with_object({}) do |service_name, response|
           response["projects_#{service_name}_active".to_sym] = count(Service.active.where(template: false, type: "#{service_name}_service".camelize))
-        end
-
-        # Keep old Slack keys for backward compatibility, https://gitlab.com/gitlab-data/analytics/issues/3241
-        results[:projects_slack_notifications_active] = results[:projects_slack_active]
-        results[:projects_slack_slash_active] = results[:projects_slack_slash_commands_active]
-
-        results.merge(jira_usage).merge(jira_import_usage)
+        end.merge(jira_usage).merge(jira_import_usage)
       end
 
       def jira_usage
diff --git a/spec/lib/gitlab/usage_data_spec.rb b/spec/lib/gitlab/usage_data_spec.rb
index dd32311e79e13d020f9a2274804b38823b0bc20e..bc4a4fd53e835438099f611d4b786306ec2968a2 100644
--- a/spec/lib/gitlab/usage_data_spec.rb
+++ b/spec/lib/gitlab/usage_data_spec.rb
@@ -126,8 +126,6 @@
       expect(count_data[:jira_imports_projects_count]).to eq(2)
       expect(count_data[:jira_imports_total_imported_count]).to eq(3)
       expect(count_data[:jira_imports_total_imported_issues_count]).to eq(13)
-      expect(count_data[:projects_slack_notifications_active]).to eq(2)
-      expect(count_data[:projects_slack_slash_active]).to eq(1)
       expect(count_data[:projects_slack_active]).to eq(2)
       expect(count_data[:projects_slack_slash_commands_active]).to eq(1)
       expect(count_data[:projects_custom_issue_tracker_active]).to eq(1)
diff --git a/spec/support/helpers/usage_data_helpers.rb b/spec/support/helpers/usage_data_helpers.rb
index 7ea03f3cc7ad35928af6ebb3640a9228c896440b..40bb0f396fc21502d0e8d5fdc12a8549529ba237 100644
--- a/spec/support/helpers/usage_data_helpers.rb
+++ b/spec/support/helpers/usage_data_helpers.rb
@@ -89,8 +89,6 @@ module UsageDataHelpers
       projects_jira_active
       projects_jira_server_active
       projects_jira_cloud_active
-      projects_slack_notifications_active
-      projects_slack_slash_active
       projects_slack_active
       projects_slack_slash_commands_active
       projects_custom_issue_tracker_active