diff --git a/app/resources/js/views/admin/AdminPricingTiersView.vue b/app/resources/js/views/admin/AdminPricingTiersView.vue
index 20fd4340..a6a7ab58 100644
--- a/app/resources/js/views/admin/AdminPricingTiersView.vue
+++ b/app/resources/js/views/admin/AdminPricingTiersView.vue
@@ -2,6 +2,19 @@
     <div class="admin-pricing-tiers-view">
         <h1 class="text-h4 mb-6">Тарифная сетка</h1>
 
+        <v-alert
+            v-if="errorMessage"
+            type="error"
+            variant="tonal"
+            class="mb-4"
+            density="compact"
+            data-testid="pricing-error-alert"
+            closable
+            @click:close="errorMessage = null"
+        >
+            {{ errorMessage }}
+        </v-alert>
+
         <v-card class="mb-6" elevation="1">
             <v-card-title>
                 Текущая активная сетка
@@ -88,21 +101,31 @@
                 </v-card-actions>
             </v-card>
         </v-dialog>
+
+        <v-snackbar
+            v-model="successToastOpen"
+            :timeout="4000"
+            color="success"
+            location="bottom right"
+            data-testid="pricing-success-toast"
+        >
+            {{ successMessage }}
+        </v-snackbar>
     </div>
 </template>
 
 <script setup lang="ts">
 import { ref, computed, onMounted } from 'vue';
 import axios from 'axios';
+import { extractErrorMessage } from '../../api/client';
 
 /**
- * SaaS-admin → Тарифная сетка (Plan 4 Task 9).
+ * SaaS-admin → Тарифная сетка (Plan 4 Task 9, Sprint 1 G1 error handling).
  *
  * Backend: AdminPricingTiersController (GET/POST/DELETE).
  * Палитра Forest + JetBrains Mono для tnum-цифр.
  *
- * defineExpose ниже — для Vitest unit-тестов (`load`/`submit`/`confirmDelete`/
- * `editorOpen`/`active`/`scheduled`/`editor`). На прод-сборку это не влияет.
+ * defineExpose ниже — для Vitest unit-тестов.
  */
 
 interface Tier {
@@ -122,6 +145,11 @@ const scheduled = ref<Record<string, Tier[]>>({});
 const editorOpen = ref(false);
 const saving = ref(false);
 
+// Sprint 1 G1: error/success state для UI feedback.
+const errorMessage = ref<string | null>(null);
+const successMessage = ref<string | null>(null);
+const successToastOpen = ref(false);
+
 const defaultEditor: EditorRow[] = [
     { tier_no: 1, leads_in_tier: 100, price_rub: '500.00' },
     { tier_no: 2, leads_in_tier: 200, price_rub: '450.00' },
@@ -149,17 +177,28 @@ const nextMonthStart = computed(() => {
 const hasScheduled = computed(() => Object.keys(scheduled.value).length > 0);
 
 async function load(): Promise<void> {
-    const { data } = await axios.get('/api/admin/pricing-tiers');
-    active.value = data.data.active;
-    scheduled.value = data.data.scheduled || {};
+    try {
+        const { data } = await axios.get('/api/admin/pricing-tiers');
+        active.value = data.data.active;
+        scheduled.value = data.data.scheduled || {};
+    } catch (err) {
+        errorMessage.value = extractErrorMessage(err, 'Не удалось загрузить тарифную сетку.');
+    }
 }
 
 async function submit(): Promise<void> {
     saving.value = true;
+    errorMessage.value = null;
+    successMessage.value = null;
     try {
         await axios.post('/api/admin/pricing-tiers', { tiers: editor.value });
         editorOpen.value = false;
+        successMessage.value = `Сохранено: новая сетка вступит в силу с ${nextMonthStart.value}.`;
+        successToastOpen.value = true;
         await load();
+    } catch (err) {
+        errorMessage.value = extractErrorMessage(err, 'Не удалось сохранить тарифную сетку.');
+        // Диалог остаётся открытым — пользователь может исправить и повторить.
     } finally {
         saving.value = false;
     }
@@ -169,13 +208,33 @@ async function confirmDelete(effectiveFrom: string): Promise<void> {
     if (!window.confirm(`Удалить запланированный набор с ${effectiveFrom}?`)) {
         return;
     }
-    await axios.delete(`/api/admin/pricing-tiers/scheduled/${effectiveFrom}`);
-    await load();
+    errorMessage.value = null;
+    successMessage.value = null;
+    try {
+        await axios.delete(`/api/admin/pricing-tiers/scheduled/${effectiveFrom}`);
+        successMessage.value = `Удалено: запланированный набор с ${effectiveFrom}.`;
+        successToastOpen.value = true;
+        await load();
+    } catch (err) {
+        errorMessage.value = extractErrorMessage(err, 'Не удалось удалить запланированный набор.');
+    }
 }
 
 onMounted(load);
 
-defineExpose({ load, submit, confirmDelete, editorOpen, active, scheduled, editor });
+defineExpose({
+    load,
+    submit,
+    confirmDelete,
+    editorOpen,
+    active,
+    scheduled,
+    editor,
+    errorMessage,
+    successMessage,
+    successToastOpen,
+    saving,
+});
 </script>
 
 <style scoped>
diff --git a/app/tests/Frontend/AdminPricingTiersView.spec.ts b/app/tests/Frontend/AdminPricingTiersView.spec.ts
index 323b8fca..14d747c0 100644
--- a/app/tests/Frontend/AdminPricingTiersView.spec.ts
+++ b/app/tests/Frontend/AdminPricingTiersView.spec.ts
@@ -78,3 +78,81 @@ describe('AdminPricingTiersView', () => {
         expect(axios.delete).toHaveBeenCalledWith('/api/admin/pricing-tiers/scheduled/2026-06-01');
     });
 });
+
+describe('AdminPricingTiersView error handling (Sprint 1 G1)', () => {
+    beforeEach(() => {
+        // axios.isAxiosError is auto-mocked as vi.fn() by vi.mock('axios').
+        // We need it to return true so extractErrorMessage() can read response.data.message.
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.isAxiosError as any).mockReturnValue(true);
+    });
+
+    it('submit() shows errorMessage when axios.post rejects with 422', async () => {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.get as any).mockResolvedValue({ data: { data: { active: mockTiers, scheduled: {} } } });
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.post as any).mockRejectedValue({
+            response: { status: 422, data: { message: 'Validation failed: tier 7 leads_in_tier must be null' } },
+        });
+        const wrapper = mount(AdminPricingTiersView, { global: { plugins: [vuetify] } });
+        await new Promise((r) => setTimeout(r, 50));
+        // Open editor first (submit is called from dialog) so we can verify it stays open on error.
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (wrapper.vm as any).editorOpen = true;
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        await (wrapper.vm as any).submit();
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        const vm = wrapper.vm as any;
+        expect(vm.errorMessage).toContain('Validation failed');
+        expect(vm.saving).toBe(false);
+        // Dialog should remain OPEN so user can fix and retry
+        expect(vm.editorOpen).toBe(true);
+    });
+
+    it('submit() shows successMessage on 200', async () => {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.get as any).mockResolvedValue({ data: { data: { active: mockTiers, scheduled: {} } } });
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.post as any).mockResolvedValue({ data: { effective_from: '2026-06-01' } });
+        const wrapper = mount(AdminPricingTiersView, { global: { plugins: [vuetify] } });
+        await new Promise((r) => setTimeout(r, 50));
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        await (wrapper.vm as any).submit();
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        const vm = wrapper.vm as any;
+        expect(vm.successMessage).toContain('Сохранено');
+        expect(vm.errorMessage).toBe(null);
+        expect(vm.saving).toBe(false);
+        expect(vm.editorOpen).toBe(false);
+    });
+
+    it('confirmDelete() shows errorMessage when axios.delete rejects', async () => {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.get as any).mockResolvedValue({ data: { data: { active: mockTiers, scheduled: {} } } });
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.delete as any).mockRejectedValue({
+            response: { status: 500, data: { message: 'Database connection failed' } },
+        });
+        window.confirm = vi.fn(() => true);
+        const wrapper = mount(AdminPricingTiersView, { global: { plugins: [vuetify] } });
+        await new Promise((r) => setTimeout(r, 50));
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        await (wrapper.vm as any).confirmDelete('2026-06-01');
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        expect((wrapper.vm as any).errorMessage).toContain('Database connection failed');
+    });
+
+    it('confirmDelete() shows successMessage on OK', async () => {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.get as any).mockResolvedValue({ data: { data: { active: mockTiers, scheduled: {} } } });
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        (axios.delete as any).mockResolvedValue({ data: { ok: true } });
+        window.confirm = vi.fn(() => true);
+        const wrapper = mount(AdminPricingTiersView, { global: { plugins: [vuetify] } });
+        await new Promise((r) => setTimeout(r, 50));
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        await (wrapper.vm as any).confirmDelete('2026-06-01');
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        expect((wrapper.vm as any).successMessage).toContain('Удалено');
+    });
+});