diff --git a/x-pack/plugins/apm/server/lib/rum_client/has_rum_data.ts b/x-pack/plugins/apm/server/lib/rum_client/has_rum_data.ts
index 8de2e4e1cca42..87136fc0538a6 100644
--- a/x-pack/plugins/apm/server/lib/rum_client/has_rum_data.ts
+++ b/x-pack/plugins/apm/server/lib/rum_client/has_rum_data.ts
@@ -14,7 +14,11 @@ import { ProcessorEvent } from '../../../common/processor_event';
 import { rangeQuery } from '../../../server/utils/queries';
 import { TRANSACTION_PAGE_LOAD } from '../../../common/transaction_types';
 
-export async function hasRumData({ setup }: { setup: Setup & SetupTimeRange }) {
+export async function hasRumData({
+  setup,
+}: {
+  setup: Setup & Partial<SetupTimeRange>;
+}) {
   try {
     const { start, end } = setup;
 
diff --git a/x-pack/plugins/apm/server/routes/rum_client.ts b/x-pack/plugins/apm/server/routes/rum_client.ts
index c723f2c266ca9..bf58c7fcf39b2 100644
--- a/x-pack/plugins/apm/server/routes/rum_client.ts
+++ b/x-pack/plugins/apm/server/routes/rum_client.ts
@@ -7,6 +7,7 @@
 
 import * as t from 'io-ts';
 import { jsonRt } from '@kbn/io-ts-utils';
+import { isoToEpochRt } from '@kbn/io-ts-utils';
 import { LocalUIFilterName } from '../../common/ui_filter';
 import {
   Setup,
@@ -264,7 +265,11 @@ const rumJSErrors = createApmServerRoute({
 const rumHasDataRoute = createApmServerRoute({
   endpoint: 'GET /api/apm/observability_overview/has_rum_data',
   params: t.partial({
-    query: t.intersection([uiFiltersRt, rangeRt]),
+    query: t.partial({
+      uiFilters: t.string,
+      start: isoToEpochRt,
+      end: isoToEpochRt,
+    }),
   }),
   options: { tags: ['access:apm'] },
   handler: async (resources) => {
diff --git a/x-pack/plugins/observability/server/utils/queries.ts b/x-pack/plugins/observability/server/utils/queries.ts
index 584719532ddee..9e1c110e77587 100644
--- a/x-pack/plugins/observability/server/utils/queries.ts
+++ b/x-pack/plugins/observability/server/utils/queries.ts
@@ -8,7 +8,7 @@
 import { QueryContainer } from '@elastic/elasticsearch/api/types';
 import { esKuery } from '../../../../../src/plugins/data/server';
 
-export function rangeQuery(start: number, end: number, field = '@timestamp'): QueryContainer[] {
+export function rangeQuery(start?: number, end?: number, field = '@timestamp'): QueryContainer[] {
   return [
     {
       range: {