diff --git a/apps/edr-freight-web/backoffice/src/pages/operations/FirstMilePage.tsx b/apps/edr-freight-web/backoffice/src/pages/operations/FirstMilePage.tsx
index a8c55ecf4..69812182f 100644
--- a/apps/edr-freight-web/backoffice/src/pages/operations/FirstMilePage.tsx
+++ b/apps/edr-freight-web/backoffice/src/pages/operations/FirstMilePage.tsx
@@ -208,6 +208,20 @@ const billingIssues = (r: FirstMileRecord) => {
   ];
   return { zeroPrice, mixedCurrency: currencies.length > 1, currencies };
 };
+/**
+ * The mile bills as distance × pricePerKm in the vehicle's own currency, so a
+ * vehicle missing either field cannot produce an invoice line. Returns the
+ * human-readable gap, or null when the vehicle is billable.
+ */
+const pricingGap = (
+  v?: { pricePerKm?: number | string | null; currency?: string | null } | null,
+): string | null => {
+  if (!v) return null;
+  const missing: string[] = [];
+  if (!(Number(v.pricePerKm) > 0)) missing.push("Price per KM");
+  if (!String(v.currency ?? "").trim()) missing.push("Currency");
+  return missing.length ? missing.join(" and ") : null;
+};
 const customerName = (r: FirstMileRecord) => r.booking?.company?.name ?? "—";
 const pickupLocation = (r: FirstMileRecord) => r.booking?.firstMilePickupAddress ?? "—";
 const cargoDesc = (r: FirstMileRecord) => {
@@ -681,6 +695,22 @@ const FirstMilePage = () => {
     return opts;
   }, [vehicleOptions, activeRecord]);
 
+  // Pricing gap per vehicle id — an unpriced vehicle is blocked from assignment
+  // below rather than silently billing 0 once distances are entered.
+  const pricingGapById = useMemo(() => {
+    const map = new Map<string, string | null>();
+    const add = (v?: { id: string; pricePerKm?: number | string | null; currency?: string | null } | null) => {
+      if (v?.id) map.set(v.id, pricingGap(v));
+    };
+    for (const v of Array.isArray(vehiclesData) ? vehiclesData : []) add(v);
+    for (const a of activeRecord?.vehicleAssignments ?? []) add(a.vehicle);
+    add(activeRecord?.vehicle);
+    return map;
+  }, [vehiclesData, activeRecord]);
+
+  const vehicleLabelFor = (id: string) =>
+    assignVehicleOptions.find((o) => o.value === id)?.label ?? id;
+
   // Full booking (with container units) for the assign modal's container dropdown.
   // Fetched on open so container numbers show regardless of what the list embeds.
   const { data: assignBooking } = useQuery({
@@ -932,6 +962,21 @@ const FirstMilePage = () => {
 
     if (!targetIds.length) return;
 
+    // Backstop for rows the Select guard never saw (pre-filled reassignments).
+    const unpriced = vehicles
+      .map((v) => ({ label: vehicleLabelFor(v.vehicleId), gap: pricingGapById.get(v.vehicleId) }))
+      .filter((v): v is { label: string; gap: string } => Boolean(v.gap));
+    if (unpriced.length) {
+      toast({
+        title: "Vehicle is not priced",
+        description: `${unpriced
+          .map((v) => `${v.label} (${v.gap} not set)`)
+          .join("; ")} — set it on the vehicle before assigning.`,
+        variant: "destructive",
+      });
+      return;
+    }
+
     // Empty set = unassign all (setVehicles releases the removed vehicles).
     Promise.all(targetIds.map((id) => setVehiclesMutation.mutateAsync({ id, vehicles })))
       .then(() => {
@@ -1365,9 +1410,18 @@ const FirstMilePage = () => {
                     (o) => o.value === row.vehicleId || !vehicleRows.some((r) => r.vehicleId === o.value),
                   )}
                   value={row.vehicleId}
-                  onChange={(v) =>
-                    setVehicleRows((prev) => prev.map((x, idx) => (idx === i ? { ...x, vehicleId: v } : x)))
-                  }
+                  onChange={(v) => {
+                    const gap = v ? pricingGapById.get(v) : null;
+                    if (v && gap) {
+                      toast({
+                        title: "Vehicle is not priced",
+                        description: `${vehicleLabelFor(v)} — ${gap} not set. Set it on the vehicle before assigning.`,
+                        variant: "destructive",
+                      });
+                      return;
+                    }
+                    setVehicleRows((prev) => prev.map((x, idx) => (idx === i ? { ...x, vehicleId: v } : x)));
+                  }}
                   searchable
                   clearable
                   disabled={assignVehicleOptions.length === 0}
diff --git a/apps/edr-freight-web/backoffice/src/pages/operations/LastMilePage.tsx b/apps/edr-freight-web/backoffice/src/pages/operations/LastMilePage.tsx
index e5de54880..cd5d22c6b 100644
--- a/apps/edr-freight-web/backoffice/src/pages/operations/LastMilePage.tsx
+++ b/apps/edr-freight-web/backoffice/src/pages/operations/LastMilePage.tsx
@@ -251,6 +251,20 @@ const billingIssues = (r: LastMileRecord) => {
   ];
   return { zeroPrice, mixedCurrency: currencies.length > 1, currencies };
 };
+/**
+ * The mile bills as distance × pricePerKm in the vehicle's own currency, so a
+ * vehicle missing either field cannot produce an invoice line. Returns the
+ * human-readable gap, or null when the vehicle is billable.
+ */
+const pricingGap = (
+  v?: { pricePerKm?: number | string | null; currency?: string | null } | null,
+): string | null => {
+  if (!v) return null;
+  const missing: string[] = [];
+  if (!(Number(v.pricePerKm) > 0)) missing.push("Price per KM");
+  if (!String(v.currency ?? "").trim()) missing.push("Currency");
+  return missing.length ? missing.join(" and ") : null;
+};
 const customerName = (r: LastMileRecord) => r.booking?.company?.name ?? "—";
 const deliveryLocation = (r: LastMileRecord) => r.booking?.lastMileDeliveryAddress ?? "—";
 const cargoDesc = (r: LastMileRecord) => {
@@ -870,6 +884,22 @@ const LastMilePage = () => {
     return opts;
   }, [vehicleOptions, activeRecord]);
 
+  // Pricing gap per vehicle id — an unpriced vehicle is blocked from assignment
+  // below rather than silently billing 0 once distances are entered.
+  const pricingGapById = useMemo(() => {
+    const map = new Map<string, string | null>();
+    const add = (v?: { id: string; pricePerKm?: number | string | null; currency?: string | null } | null) => {
+      if (v?.id) map.set(v.id, pricingGap(v));
+    };
+    for (const v of Array.isArray(vehiclesData) ? vehiclesData : []) add(v);
+    for (const a of activeRecord?.vehicleAssignments ?? []) add(a.vehicle);
+    add(activeRecord?.vehicle);
+    return map;
+  }, [vehiclesData, activeRecord]);
+
+  const vehicleLabelFor = (id: string) =>
+    assignVehicleOptions.find((o) => o.value === id)?.label ?? id;
+
   // Full booking (with container units) for the assign modal's container dropdown.
   // Fetched on open so container numbers show regardless of what the list embeds.
   const { data: assignBooking } = useQuery({
@@ -1018,6 +1048,21 @@ const LastMilePage = () => {
 
     if (!targetIds.length) return;
 
+    // Backstop for rows the Select guard never saw (pre-filled reassignments).
+    const unpriced = vehicles
+      .map((v) => ({ label: vehicleLabelFor(v.vehicleId), gap: pricingGapById.get(v.vehicleId) }))
+      .filter((v): v is { label: string; gap: string } => Boolean(v.gap));
+    if (unpriced.length) {
+      toast({
+        title: "Vehicle is not priced",
+        description: `${unpriced
+          .map((v) => `${v.label} (${v.gap} not set)`)
+          .join("; ")} — set it on the vehicle before assigning.`,
+        variant: "destructive",
+      });
+      return;
+    }
+
     // Empty set = unassign all (setVehicles releases the removed vehicles).
     Promise.all(targetIds.map((id) => setVehiclesMutation.mutateAsync({ id, vehicles })))
       .then(() => {
@@ -1738,9 +1783,18 @@ const LastMilePage = () => {
                     (o) => o.value === row.vehicleId || !vehicleRows.some((r) => r.vehicleId === o.value),
                   )}
                   value={row.vehicleId}
-                  onChange={(v) =>
-                    setVehicleRows((prev) => prev.map((x, idx) => (idx === i ? { ...x, vehicleId: v } : x)))
-                  }
+                  onChange={(v) => {
+                    const gap = v ? pricingGapById.get(v) : null;
+                    if (v && gap) {
+                      toast({
+                        title: "Vehicle is not priced",
+                        description: `${vehicleLabelFor(v)} — ${gap} not set. Set it on the vehicle before assigning.`,
+                        variant: "destructive",
+                      });
+                      return;
+                    }
+                    setVehicleRows((prev) => prev.map((x, idx) => (idx === i ? { ...x, vehicleId: v } : x)));
+                  }}
                   searchable
                   clearable
                   disabled={assignVehicleOptions.length === 0}