diff --git a/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentTable.test.tsx b/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentTable.test.tsx
index 47110932..f378b018 100644
--- a/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentTable.test.tsx
+++ b/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentTable.test.tsx
@@ -19,7 +19,7 @@ vi.mock("../../queue/queueService", async (importOriginal) => {
     await importOriginal<typeof import("../../queue/queueService")>();
   return {
     ...actual,
-    useSumbitQueueTask: vi.fn(),
+    useSumbitQueueTasks: vi.fn(),
   };
 });
 
@@ -31,7 +31,7 @@ vi.mock("@atlas/app-shell", async (importOriginal) => {
   };
 });
 
-const mockedUseSubmitTask = queueService.useSumbitQueueTask as unknown as Mock;
+const mockedUseSubmitTask = queueService.useSumbitQueueTasks as unknown as Mock;
 const mockedUseQuery = apollo.useQuery as unknown as Mock;
 const mockedUseInstrumentSession =
   appShell.useInstrumentSession as unknown as Mock;
@@ -204,18 +204,20 @@ describe("ExperimentList", () => {
     await waitFor(() => {
       expect(mutateAsync).toHaveBeenCalledTimes(1);
       expect(mutateAsync).toHaveBeenCalledWith({
-        experiment: {
-          name: "Exp 1",
-          instrument_session: "",
-          experiment_definition: {
-            data: { beam_energy: 20, focused_beam_size: 5, time_per_pdf: 10 },
-            name: "Def 1",
-          },
-          sample: {
-            data: { composition: "H2O", density: 1.2 },
-            name: "Sample A",
+        experiments: [
+          {
+            name: "Exp 1",
+            instrument_session: "",
+            experiment_definition: {
+              data: { beam_energy: 20, focused_beam_size: 5, time_per_pdf: 10 },
+              name: "Def 1",
+            },
+            sample: {
+              data: { composition: "H2O", density: 1.2 },
+              name: "Sample A",
+            },
           },
-        },
+        ],
       });
     });
   });
@@ -238,34 +240,34 @@ describe("ExperimentList", () => {
     fireEvent.click(screen.getByRole("button", { name: /add all to queue/i }));
 
     await waitFor(() => {
-      expect(mutateAsync).toHaveBeenCalledTimes(2);
+      expect(mutateAsync).toHaveBeenCalledTimes(1);
       expect(mutateAsync).toHaveBeenNthCalledWith(1, {
-        experiment: {
-          name: "Exp 1",
-          instrument_session: "",
-          experiment_definition: {
-            data: { beam_energy: 20, focused_beam_size: 5, time_per_pdf: 10 },
-            name: "Def 1",
-          },
-          sample: {
-            data: { composition: "H2O", density: 1.2 },
-            name: "Sample A",
-          },
-        },
-      });
-      expect(mutateAsync).toHaveBeenNthCalledWith(2, {
-        experiment: {
-          name: "Exp 2",
-          instrument_session: "",
-          experiment_definition: {
-            data: { beam_energy: 20, focused_beam_size: 5, time_per_pdf: 10 },
-            name: "Def 2",
+        experiments: [
+          {
+            name: "Exp 1",
+            instrument_session: "",
+            experiment_definition: {
+              data: { beam_energy: 20, focused_beam_size: 5, time_per_pdf: 10 },
+              name: "Def 1",
+            },
+            sample: {
+              data: { composition: "H2O", density: 1.2 },
+              name: "Sample A",
+            },
           },
-          sample: {
-            data: { composition: "CO2", density: 1.2 },
-            name: "Sample B",
+          {
+            name: "Exp 2",
+            instrument_session: "",
+            experiment_definition: {
+              data: { beam_energy: 20, focused_beam_size: 5, time_per_pdf: 10 },
+              name: "Def 2",
+            },
+            sample: {
+              data: { composition: "CO2", density: 1.2 },
+              name: "Sample B",
+            },
           },
-        },
+        ],
       });
     });
   });
diff --git a/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentsTable.tsx b/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentsTable.tsx
index 77be34a1..0667b97c 100644
--- a/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentsTable.tsx
+++ b/apps/i15-1/src/components/ExperimentTable/ULIMSExperimentsTable.tsx
@@ -9,7 +9,7 @@ import { columns, type ExperimentTableData } from "./columns";
 import { useLocation } from "react-router-dom";
 import { useMemo } from "react";
 import QueueIcon from "@mui/icons-material/Queue";
-import { useSumbitQueueTask } from "../../queue/queueService";
+import { useSumbitQueueTasks } from "../../queue/queueService";
 import { getSessionPlaylistQuery } from "../../graphql/getSessionPlaylistQuery";
 import { type ExperimentNode } from "../../graphql/getSessionPlaylistQueryTyped";
 import type {
@@ -56,24 +56,20 @@ const GET_EXPERIMENTS: TypedDocumentNode<
 export function ExperimentList() {
   const location = useLocation();
   const { instrumentSession } = useInstrumentSession();
-  const { mutateAsync: submitTaskAsync } = useSumbitQueueTask();
+  const { mutateAsync: submitTasksAsync } = useSumbitQueueTasks();
 
   async function submitQueueTasks(selected: ExperimentTableData[]) {
-    await Promise.all(
-      selected.map((exp) =>
-        submitTaskAsync({
-          experiment: {
-            name: exp.experiment.name,
-            experiment_definition: exp.experiment
-              .experimentDefinition as ExperimentDefinition,
-            sample: exp.experiment.sample as Sample,
-            instrument_session:
-              exp.experiment.sample.instrumentSessions?.[0]?.instrumentSessionReference?.toLowerCase() ??
-              "",
-          },
-        }),
-      ),
-    );
+    await submitTasksAsync({
+      experiments: selected.map((exp) => ({
+        name: exp.experiment.name,
+        experiment_definition: exp.experiment
+          .experimentDefinition as ExperimentDefinition,
+        sample: exp.experiment.sample as Sample,
+        instrument_session:
+          exp.experiment.sample.instrumentSessions?.[0]?.instrumentSessionReference?.toLowerCase() ??
+          "",
+      })),
+    });
   }
 
   const visit = visitTextToVisit(instrumentSession);
diff --git a/apps/i15-1/src/queue/queueService.ts b/apps/i15-1/src/queue/queueService.ts
index 213c25c1..9837fe4c 100644
--- a/apps/i15-1/src/queue/queueService.ts
+++ b/apps/i15-1/src/queue/queueService.ts
@@ -270,16 +270,16 @@ export const clearHistory = async (): Promise<number> => {
   return response.data;
 };
 
-export const submitQueueTask = async ({
-  experiment,
+export const submitQueueTasks = async ({
+  experiments,
   taskPosition,
 }: {
-  experiment: Experiment | TaskRequest;
+  experiments: (Experiment | TaskRequest)[];
   taskPosition?: number;
 }) => {
   const data: AddTasksToQueueQueuePostData = {
     url: `/queue`,
-    body: [experiment],
+    body: experiments,
     query: {
       position: taskPosition,
     },
@@ -288,10 +288,10 @@ export const submitQueueTask = async ({
   return await addTasksToQueueQueuePost(data);
 };
 
-export function useSumbitQueueTask() {
+export function useSumbitQueueTasks() {
   const client = useQueryClient();
   return useMutation({
-    mutationFn: submitQueueTask,
+    mutationFn: submitQueueTasks,
     onSuccess: async () => {
       await Promise.all([
         client.invalidateQueries({ queryKey: ["queue"] }),