diff --git a/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts b/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts
index e243d55363a57..aa945c74d71ff 100644
--- a/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts
+++ b/x-pack/plugins/task_manager/server/integration_tests/managed_configuration.test.ts
@@ -13,8 +13,7 @@ import { TaskManagerPlugin, TaskManagerStartContract } from '../plugin';
 import { coreMock } from '@kbn/core/server/mocks';
 import { TaskManagerConfig } from '../config';
 
-// FAILING: https://github.com/elastic/kibana/issues/120269
-describe.skip('managed configuration', () => {
+describe('managed configuration', () => {
   let taskManagerStart: TaskManagerStartContract;
   let logger: Logger;
 
@@ -22,6 +21,19 @@ describe.skip('managed configuration', () => {
   const savedObjectsClient = savedObjectsRepositoryMock.create();
   const esStart = elasticsearchServiceMock.createStart();
 
+  const inlineScriptError = new Error('cannot execute [inline] scripts" error') as Error & {
+    meta: unknown;
+  };
+  inlineScriptError.meta = {
+    body: {
+      error: {
+        caused_by: {
+          reason: 'cannot execute [inline] scripts',
+        },
+      },
+    },
+  };
+
   beforeEach(async () => {
     jest.resetAllMocks();
     clock = sinon.useFakeTimers();
@@ -132,16 +144,12 @@ describe.skip('managed configuration', () => {
   });
 
   test('should lower max workers when Elasticsearch returns "cannot execute [inline] scripts" error', async () => {
-    esStart
-      .createClient('taskManager')
-      .asInternalUser.search.mockRejectedValueOnce(
-        elasticsearchServiceMock.createErrorTransportRequestPromise(
-          new Error('cannot execute [inline] scripts" error')
-        )
-      );
+    esStart.client.asInternalUser.search.mockImplementationOnce(async () => {
+      throw inlineScriptError;
+    });
 
     await expect(taskManagerStart.fetch({})).rejects.toThrowErrorMatchingInlineSnapshot(
-      `"cannot execute [inline] scripts" error"`
+      `"cannot execute [inline] scripts\\" error"`
     );
     clock.tick(ADJUST_THROUGHPUT_INTERVAL);
 
@@ -155,16 +163,12 @@ describe.skip('managed configuration', () => {
   });
 
   test('should increase poll interval when Elasticsearch returns "cannot execute [inline] scripts" error', async () => {
-    esStart
-      .createClient('taskManager')
-      .asInternalUser.search.mockRejectedValueOnce(
-        elasticsearchServiceMock.createErrorTransportRequestPromise(
-          new Error('cannot execute [inline] scripts" error')
-        )
-      );
+    esStart.client.asInternalUser.search.mockImplementationOnce(async () => {
+      throw inlineScriptError;
+    });
 
     await expect(taskManagerStart.fetch({})).rejects.toThrowErrorMatchingInlineSnapshot(
-      `"cannot execute [inline] scripts" error"`
+      `"cannot execute [inline] scripts\\" error"`
     );
 
     clock.tick(ADJUST_THROUGHPUT_INTERVAL);