diff --git a/ui/actions/compliances/compliances.test.ts b/ui/actions/compliances/compliances.test.ts
new file mode 100644
index 0000000000..207280a4c2
--- /dev/null
+++ b/ui/actions/compliances/compliances.test.ts
@@ -0,0 +1,100 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const { fetchMock, getAuthHeadersMock, handleApiResponseMock } = vi.hoisted(
+  () => ({
+    fetchMock: vi.fn(),
+    getAuthHeadersMock: vi.fn(),
+    handleApiResponseMock: vi.fn(),
+  }),
+);
+
+vi.mock("@/lib", () => ({
+  apiBaseUrl: "https://api.example.com/api/v1",
+  getAuthHeaders: getAuthHeadersMock,
+}));
+
+vi.mock("@/lib/server-actions-helper", () => ({
+  handleApiResponse: handleApiResponseMock,
+}));
+
+import {
+  getComplianceOverviewMetadataInfo,
+  getComplianceRequirements,
+  getCompliancesOverview,
+} from "./compliances";
+
+const calledUrl = () => new URL(fetchMock.mock.calls[0][0] as string);
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  vi.stubGlobal("fetch", fetchMock);
+  getAuthHeadersMock.mockResolvedValue({ Authorization: "Bearer token" });
+  fetchMock.mockResolvedValue(new Response(null, { status: 200 }));
+  handleApiResponseMock.mockResolvedValue({ data: [] });
+});
+
+describe("getCompliancesOverview", () => {
+  it("sends scan_id and region in scan mode", async () => {
+    await getCompliancesOverview({ scanId: "scan-1", region: "eu-west-1" });
+
+    const url = calledUrl();
+    expect(url.searchParams.get("filter[scan_id]")).toBe("scan-1");
+    expect(url.searchParams.get("filter[region__in]")).toBe("eu-west-1");
+  });
+
+  it("forwards provider filters and omits scan_id in aggregated mode", async () => {
+    await getCompliancesOverview({
+      scanId: "scan-1",
+      filters: { "filter[provider_type__in]": "aws,gcp" },
+    });
+
+    const url = calledUrl();
+    expect(url.searchParams.get("filter[provider_type__in]")).toBe("aws,gcp");
+    // XOR: provider filters present -> never send scan_id (avoids backend 400)
+    expect(url.searchParams.get("filter[scan_id]")).toBeNull();
+  });
+});
+
+describe("getComplianceOverviewMetadataInfo", () => {
+  it("forwards provider filters", async () => {
+    await getComplianceOverviewMetadataInfo({
+      filters: { "filter[provider_groups__in]": "g1,g2" },
+    });
+
+    expect(calledUrl().searchParams.get("filter[provider_groups__in]")).toBe(
+      "g1,g2",
+    );
+  });
+});
+
+describe("getComplianceRequirements", () => {
+  it("appends compliance_id and scan_id in scan mode", async () => {
+    await getComplianceRequirements({
+      complianceId: "cis_2.0_aws",
+      scanId: "scan-1",
+    });
+
+    const url = calledUrl();
+    expect(url.searchParams.get("filter[compliance_id]")).toBe("cis_2.0_aws");
+    expect(url.searchParams.get("filter[scan_id]")).toBe("scan-1");
+  });
+
+  it("forwards provider filters and omits scan_id in aggregated mode", async () => {
+    await getComplianceRequirements({
+      complianceId: "cis_2.0_aws",
+      scanId: "scan-1",
+      filters: { "filter[provider_id__in]": "p1,p2" },
+    });
+
+    const url = calledUrl();
+    expect(url.searchParams.get("filter[compliance_id]")).toBe("cis_2.0_aws");
+    expect(url.searchParams.get("filter[provider_id__in]")).toBe("p1,p2");
+    expect(url.searchParams.get("filter[scan_id]")).toBeNull();
+  });
+
+  it("omits scan_id when no scan is provided", async () => {
+    await getComplianceRequirements({ complianceId: "cis_2.0_aws" });
+
+    expect(calledUrl().searchParams.get("filter[scan_id]")).toBeNull();
+  });
+});
diff --git a/ui/actions/compliances/compliances.ts b/ui/actions/compliances/compliances.ts
index e06b06d29d..63c49ac647 100644
--- a/ui/actions/compliances/compliances.ts
+++ b/ui/actions/compliances/compliances.ts
@@ -1,6 +1,7 @@
 "use server";
 
 import { apiBaseUrl, getAuthHeaders } from "@/lib";
+import { hasComplianceProviderFilters } from "@/lib/compliance/compliance-provider-filters";
 import { handleApiResponse } from "@/lib/server-actions-helper";
 
 export const getCompliancesOverview = async ({
@@ -27,7 +28,10 @@ export const getCompliancesOverview = async ({
 
   Object.entries(filters).forEach(([key, value]) => setParam(key, value));
 
-  setParam("filter[scan_id]", scanId);
+  // XOR: the backend rejects filter[scan_id] together with provider filters.
+  if (!hasComplianceProviderFilters(filters)) {
+    setParam("filter[scan_id]", scanId);
+  }
   setParam("filter[region__in]", region);
   try {
     const response = await fetch(url.toString(), {
@@ -111,22 +115,33 @@ export const getComplianceRequirements = async ({
   complianceId,
   scanId,
   region,
+  filters = {},
 }: {
   complianceId: string;
-  scanId: string;
+  scanId?: string;
   region?: string | string[];
+  filters?: Record<string, string | string[] | undefined>;
 }) => {
   const headers = await getAuthHeaders({ contentType: false });
 
   try {
     const url = new URL(`${apiBaseUrl}/compliance-overviews/requirements`);
     url.searchParams.append("filter[compliance_id]", complianceId);
-    url.searchParams.append("filter[scan_id]", scanId);
+
+    // Forward provider-scope filters (aggregated mode); XOR with scan_id.
+    Object.entries(filters).forEach(([key, value]) => {
+      if (value === undefined) return;
+      const serialized = Array.isArray(value) ? value.join(",") : value;
+      if (serialized.trim() !== "") url.searchParams.append(key, serialized);
+    });
+
+    if (scanId && !hasComplianceProviderFilters(filters)) {
+      url.searchParams.append("filter[scan_id]", scanId);
+    }
 
     if (region) {
       const regionValue = Array.isArray(region) ? region.join(",") : region;
       url.searchParams.append("filter[region__in]", regionValue);
-      //remove page param
     }
     url.searchParams.delete("page");