diff --git a/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts b/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts
index 161604e81..78c3d43ff 100644
--- a/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts
+++ b/apps/edr-freight-api/src/modules/first-mile/first-mile.controller.ts
@@ -59,7 +59,7 @@ export class FirstMileController {
   @TrainSchedulingManage()
   @ApiOperation({ summary: 'Accept a paid booking and create a first-mile leg' })
   acceptBooking(@Param('reference') reference: string) {
-    return this.firstMileService.acceptBooking(reference);
+    return this.firstMileService.acceptBookingByReference(reference);
   }
 
   @Post()
diff --git a/apps/edr-freight-api/src/modules/first-mile/first-mile.service.ts b/apps/edr-freight-api/src/modules/first-mile/first-mile.service.ts
index cb35f9a89..a00e54fff 100644
--- a/apps/edr-freight-api/src/modules/first-mile/first-mile.service.ts
+++ b/apps/edr-freight-api/src/modules/first-mile/first-mile.service.ts
@@ -44,8 +44,8 @@ export class FirstMileService {
    * paid before any first-mile work proceeds. Throws if the reference is
    * unknown or the booking has not reached PAID status.
    */
-  async acceptBooking(bookingReference: string): Promise<FirstMile | null> {
-    const booking = await this.bookingsRepository.findByReference(bookingReference);
+  async acceptBooking(bookingId: string): Promise<FirstMile | null> {
+    const booking = await this.bookingsRepository.findById(bookingId);
 
     if (!booking) {
       return null;
@@ -61,6 +61,22 @@ export class FirstMileService {
     });
   }
 
+  async acceptBookingByReference(bookingReference: string): Promise<FirstMile | null> {
+    const booking = await this.bookingsRepository.findByReference(bookingReference);
+
+    if (!booking) {
+      return null;
+    }
+
+    if (booking.paymentStatus !== 'PAID') {
+      return null;
+    }
+
+    return this.create({
+      bookingId: booking.id,
+      advancedPayment: 0,
+    });
+  }
   async findAll(filter: FirstMileListFilter = {}): Promise<{
     data: FirstMile[];
     meta: { total: number; page: number; pageSize: number; totalPages: number };
diff --git a/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts b/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts
index ea1e29a3d..e8abf52c6 100644
--- a/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts
+++ b/apps/edr-freight-api/src/modules/last-mile/last-mile.controller.ts
@@ -59,7 +59,7 @@ export class LastMileController {
   @TrainSchedulingManage()
   @ApiOperation({ summary: 'Accept a paid booking and create a last-mile leg' })
   acceptBooking(@Param('reference') reference: string) {
-    return this.lastMileService.acceptBooking(reference);
+    return this.lastMileService.acceptBookingByReference(reference);
   }
 
   @Post()
diff --git a/apps/edr-freight-api/src/modules/last-mile/last-mile.service.ts b/apps/edr-freight-api/src/modules/last-mile/last-mile.service.ts
index 1dc0ce48d..b764d3428 100644
--- a/apps/edr-freight-api/src/modules/last-mile/last-mile.service.ts
+++ b/apps/edr-freight-api/src/modules/last-mile/last-mile.service.ts
@@ -54,7 +54,26 @@ export class LastMileService {
 
     return this.create({
       bookingId: booking.id,
-      advancedPayment: booking.totalAmount,
+      advancedPayment: 0,
+    });
+  }
+
+    async acceptBookingByReference(bookingReference: string): Promise<LastMile> {
+    const booking = await this.bookingsRepository.findByReference(bookingReference);
+
+    if (!booking) {
+      throw new NotFoundException(`Booking ${bookingReference} not found`);
+    }
+
+    if (booking.paymentStatus !== 'PAID') {
+      throw new BadRequestException(
+        `Booking ${bookingReference} is not paid (payment status: ${booking.paymentStatus})`,
+      );
+    }
+
+    return this.create({
+      bookingId: booking.id,
+      advancedPayment: 0,
     });
   }
 
diff --git a/apps/edr-freight-web/backoffice/src/App.tsx b/apps/edr-freight-web/backoffice/src/App.tsx
index ba465b962..7bdb7e18b 100644
--- a/apps/edr-freight-web/backoffice/src/App.tsx
+++ b/apps/edr-freight-web/backoffice/src/App.tsx
@@ -72,6 +72,7 @@ import WarehouseInventoryPage from "./pages/warehouses/WarehouseInventoryPage";
 import WarehouseInvoicesPage from "./pages/warehouses/WarehouseInvoicesPage";
 import WarehouseListPage from "./pages/warehouses/WarehouseListPage";
 import WarehouseRulesPage from "./pages/warehouses/WarehouseRulesPage";
+import { HealthCheck } from "./features/health/HealthCheck";
 
 const buildSidebarSections = (demoItems: SidebarItem[]): SidebarSection[] => [
   {
@@ -353,6 +354,7 @@ const App = () => {
   return (
     <Routes>
       <Route path="/um/*" element={<UserManagementHostPage />} />
+      <Route path="/health" element={<HealthCheck />} />
       <Route path="/" element={<Navigate to="/dashboard/overview" replace />} />
       <Route path="/dashboard" element={<Navigate to="/dashboard/overview" replace />} />
       <Route path="/dashboard" element={<DashboardShell />}>
@@ -388,138 +390,138 @@ const App = () => {
         <Route path="warehouse-fee-invoices" element={<WarehouseInvoicesPage />} />
         <Route path="warehouse-dashboard" element={<WarehouseDashboardPage />} />
 
-          <Route
-            path="operations/train-scheduling"
-            element={<Navigate to="/dashboard/operations/train-scheduling-v2" replace />}
-          />
-          <Route
-            path="operations/batch-board"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
-                <BatchBoardPage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="operations/first-mile"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
-                <FirstMilePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="operations/last-mile"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
-                <LastMilePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="operations/batch-board/:scheduleId"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
-                <BatchScheduleDetailPage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="operations/train-scheduling-v2"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
-                <TrainScheduleV2ListPage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="operations/train-scheduling-v2/:scheduleId"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
-                <TrainScheduleV2DetailPage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="operations/train-scheduling-v2/:scheduleId/track"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
-                <TrainScheduleTrackPage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="routes"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <RoutesPage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="locomotives"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <FleetResourcePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="trains"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <FleetResourcePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="trains/:id"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <TrainDetailPage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="wagons"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <FleetResourcePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="containers"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <FleetResourcePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="cargoes"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <FleetResourcePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="vehicles"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <FleetResourcePage />
-              </RequirePermission>
-            }
-          />
-          <Route
-            path="drivers"
-            element={
-              <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
-                <FleetResourcePage />
-              </RequirePermission>
-            }
-          />
+        <Route
+          path="operations/train-scheduling"
+          element={<Navigate to="/dashboard/operations/train-scheduling-v2" replace />}
+        />
+        <Route
+          path="operations/batch-board"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
+              <BatchBoardPage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="operations/first-mile"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
+              <FirstMilePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="operations/last-mile"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
+              <LastMilePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="operations/batch-board/:scheduleId"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
+              <BatchScheduleDetailPage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="operations/train-scheduling-v2"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
+              <TrainScheduleV2ListPage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="operations/train-scheduling-v2/:scheduleId"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
+              <TrainScheduleV2DetailPage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="operations/train-scheduling-v2/:scheduleId/track"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.trainScheduling.view}>
+              <TrainScheduleTrackPage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="routes"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <RoutesPage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="locomotives"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <FleetResourcePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="trains"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <FleetResourcePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="trains/:id"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <TrainDetailPage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="wagons"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <FleetResourcePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="containers"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <FleetResourcePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="cargoes"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <FleetResourcePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="vehicles"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <FleetResourcePage />
+            </RequirePermission>
+          }
+        />
+        <Route
+          path="drivers"
+          element={
+            <RequirePermission permission={FREIGHT_PERMS.fleet.view}>
+              <FleetResourcePage />
+            </RequirePermission>
+          }
+        />
         <Route
           path="operations/train-scheduling"
           element={<Navigate to="/dashboard/operations/train-scheduling-v2" replace />}
diff --git a/apps/edr-freight-web/backoffice/src/features/health/HealthCheck.tsx b/apps/edr-freight-web/backoffice/src/features/health/HealthCheck.tsx
new file mode 100644
index 000000000..96d51298b
--- /dev/null
+++ b/apps/edr-freight-web/backoffice/src/features/health/HealthCheck.tsx
@@ -0,0 +1,11 @@
+export const HealthCheck = () => {
+    const url1 = import.meta.env.VITE_API_URL?? "undefined";
+    const url2 = import.meta.env.VITE_BASE_API_URL?? "undefined";
+    const url3 = import.meta.env.VITE_USER_MANAGEMENT_BASE?? "undefined";
+
+    return <div>
+          <h2>-----------{url1}</h2>
+          <h2>-----------{url2}</h2>
+          <h2>-----------{url3}</h2>
+    </div>
+}
\ No newline at end of file