diff --git a/src/app/features/store/components/product-attribute-selector/product-attribute-selector.component.spec.ts b/src/app/features/store/components/product-attribute-selector/product-attribute-selector.component.spec.ts
index c249803..4e8373e 100644
--- a/src/app/features/store/components/product-attribute-selector/product-attribute-selector.component.spec.ts
+++ b/src/app/features/store/components/product-attribute-selector/product-attribute-selector.component.spec.ts
@@ -2,6 +2,7 @@ import { TestBed } from '@angular/core/testing';
 import { beforeEach, describe, expect, it } from 'vitest';
 
 import { ProductAttribute } from '../../../../core/services/catalog/catalog.interface';
+import { createCatalogAvailability } from '../../../../core/services/catalog/catalog-availability';
 import { ProductAttributeSelectorComponent } from './product-attribute-selector.component';
 
 describe('ProductAttributeSelectorComponent', () => {
@@ -31,7 +32,7 @@ describe('ProductAttributeSelectorComponent', () => {
     fixture.componentRef.setInput('variants', [
       {
         id: 1,
-        maximum_addable_quantity: null,
+        availability: createCatalogAvailability(null),
         values: { size: 'S' },
       },
     ]);
@@ -51,12 +52,12 @@ describe('ProductAttributeSelectorComponent', () => {
     fixture.componentRef.setInput('variants', [
       {
         id: 1,
-        maximum_addable_quantity: 0,
+        availability: createCatalogAvailability(0),
         values: { size: 'S' },
       },
       {
         id: 2,
-        maximum_addable_quantity: 2,
+        availability: createCatalogAvailability(2),
         values: { size: 'M' },
       },
     ]);
@@ -92,9 +93,9 @@ describe('ProductAttributeSelectorComponent', () => {
     ]);
     fixture.componentRef.setInput('inventoryPolicy', 'unlimited');
     fixture.componentRef.setInput('variants', [
-      { id: 1, maximum_addable_quantity: null, values: { event_date: '1' } },
-      { id: 2, maximum_addable_quantity: null, values: { event_date: '2' } },
-      { id: 3, maximum_addable_quantity: null, values: { event_date: ['1', '2'] } },
+      { id: 1, availability: createCatalogAvailability(null), values: { event_date: '1' } },
+      { id: 2, availability: createCatalogAvailability(null), values: { event_date: '2' } },
+      { id: 3, availability: createCatalogAvailability(null), values: { event_date: ['1', '2'] } },
     ]);
     fixture.detectChanges();
 
@@ -135,8 +136,16 @@ describe('ProductAttributeSelectorComponent', () => {
     ]);
     fixture.componentRef.setInput('inventoryPolicy', 'unlimited');
     fixture.componentRef.setInput('variants', [
-      { id: 1, maximum_addable_quantity: null, values: { size: 'S', internal_type: 'adult' } },
-      { id: 2, maximum_addable_quantity: null, values: { size: 'M', internal_type: 'child' } },
+      {
+        id: 1,
+        availability: createCatalogAvailability(null),
+        values: { size: 'S', internal_type: 'adult' },
+      },
+      {
+        id: 2,
+        availability: createCatalogAvailability(null),
+        values: { size: 'M', internal_type: 'child' },
+      },
     ]);
     fixture.detectChanges();
 
diff --git a/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts b/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts
index 5e020c8..47fe911 100644
--- a/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts
+++ b/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts
@@ -10,6 +10,7 @@ import { beforeAll, beforeEach, describe, expect, it, vi } from 'vitest';
 import { CatalogItemDetail } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
 import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
+import { createCatalogAvailability } from '../../../../core/services/catalog/catalog-availability';
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import { ProductDetailPageComponent } from './product-detail-page.component';
@@ -38,7 +39,7 @@ describe('ProductDetailPageComponent', () => {
     has_tickets: false,
     minimum_use_date: null,
     maximum_use_date: null,
-    maximum_addable_quantity: 10,
+    availability: createCatalogAvailability(10),
     attributes: [],
     variants: [],
   };
@@ -179,7 +180,7 @@ describe('ProductDetailPageComponent', () => {
 
   it('reloads product availability when the cart changes', async () => {
     catalogServiceStub.getCatalogItem.mockReturnValue(
-      of({ ...mockProduct, maximum_addable_quantity: 4 }),
+      of({ ...mockProduct, availability: createCatalogAvailability(4) }),
     );
     await configureTestingModule();
     const fixture = TestBed.createComponent(ProductDetailPageComponent);
@@ -207,10 +208,10 @@ describe('ProductDetailPageComponent', () => {
     const detailProduct: CatalogItemDetail = {
       ...mockProduct,
       images: ['https://example.com/product.png'],
-      variants: [{ id: 123, maximum_addable_quantity: 10, values: {} }],
+      variants: [{ id: 123, availability: createCatalogAvailability(10), values: {} }],
       selected_variant: {
         id: 123,
-        maximum_addable_quantity: 10,
+        availability: createCatalogAvailability(10),
         images: ['https://example.com/variant1.png', 'https://example.com/variant2.png'],
         values: {},
       },
@@ -312,11 +313,15 @@ describe('ProductDetailPageComponent', () => {
         },
       ],
       variants: [
-        { id: 123, maximum_addable_quantity: 10, values: { color: 'beige', material: 'Cuero' } },
+        {
+          id: 123,
+          availability: createCatalogAvailability(10),
+          values: { color: 'beige', material: 'Cuero' },
+        },
       ],
       selected_variant: {
         id: 123,
-        maximum_addable_quantity: 10,
+        availability: createCatalogAvailability(10),
         images: ['https://example.com/variant1.png'],
         values: {
           color: 'beige',
@@ -353,8 +358,18 @@ describe('ProductDetailPageComponent', () => {
       purpose: 'entry',
       has_tickets: true,
       variants: [
-        { id: 101, event_date_id: 20, maximum_addable_quantity: 10, values: { event_date: '20' } },
-        { id: 102, event_date_id: 21, maximum_addable_quantity: 10, values: { event_date: '21' } },
+        {
+          id: 101,
+          event_date_id: 20,
+          availability: createCatalogAvailability(10),
+          values: { event_date: '20' },
+        },
+        {
+          id: 102,
+          event_date_id: 21,
+          availability: createCatalogAvailability(10),
+          values: { event_date: '21' },
+        },
       ],
       attributes: [
         {
@@ -385,7 +400,7 @@ describe('ProductDetailPageComponent', () => {
       selected_variant: {
         id: 101,
         event_date_id: 20,
-        maximum_addable_quantity: 10,
+        availability: createCatalogAvailability(10),
         images: [],
         values: {},
       },
@@ -407,6 +422,8 @@ describe('ProductDetailPageComponent', () => {
 
     options[1].click();
     fixture.detectChanges();
+    await fixture.whenStable();
+    fixture.detectChanges();
 
     expect(catalogServiceStub.getCatalogItem).toHaveBeenCalledWith(1, 102);
   });
@@ -429,7 +446,7 @@ describe('ProductDetailPageComponent', () => {
 
     fixture.componentInstance['selectedVariant'].set({
       id: 1,
-      maximum_addable_quantity: 10,
+      availability: createCatalogAvailability(10),
       values: {},
     });
     fixture.detectChanges();
@@ -519,7 +536,7 @@ describe('ProductDetailPageComponent', () => {
         error: {
           code: 'purchase.limit_exceeded',
           message: 'Podés agregar hasta 2 unidades más de “Auriculares Bluetooth”.',
-          maximum_addable_quantity: 2,
+          availability: createCatalogAvailability(2),
         },
       }),
     );
@@ -544,13 +561,13 @@ describe('ProductDetailPageComponent', () => {
       variants: [
         {
           id: 123,
-          maximum_addable_quantity: 5,
+          availability: createCatalogAvailability(5),
           values: {},
         },
       ],
       selected_variant: {
         id: 123,
-        maximum_addable_quantity: 5,
+        availability: createCatalogAvailability(5),
         images: [],
         values: {},
       },
@@ -583,7 +600,7 @@ describe('ProductDetailPageComponent', () => {
     resolveProduct({
       ...mockProduct,
       variants: [],
-      maximum_addable_quantity: 4,
+      availability: createCatalogAvailability(4),
     });
 
     await configureTestingModule();
@@ -609,13 +626,13 @@ describe('ProductDetailPageComponent', () => {
       variants: [
         {
           id: 123,
-          maximum_addable_quantity: 5,
+          availability: createCatalogAvailability(5),
           values: {},
         },
       ],
       selected_variant: {
         id: 123,
-        maximum_addable_quantity: 5,
+        availability: createCatalogAvailability(5),
         images: [],
         values: {},
       },
@@ -647,7 +664,7 @@ describe('ProductDetailPageComponent', () => {
   it('allows unlimited variants to increase quantity without a maximum', async () => {
     const unlimitedVariant = {
       id: 321,
-      maximum_addable_quantity: null,
+      availability: createCatalogAvailability(null),
       values: {},
     };
     resolveProduct({
@@ -655,7 +672,7 @@ describe('ProductDetailPageComponent', () => {
       inventory_policy: 'unlimited',
       selected_variant: {
         id: 321,
-        maximum_addable_quantity: null,
+        availability: createCatalogAvailability(null),
         images: [],
         values: {},
       },
@@ -679,7 +696,7 @@ describe('ProductDetailPageComponent', () => {
   it('caps an unlimited variant at the per-user purchase limit', async () => {
     const unlimitedVariant = {
       id: 322,
-      maximum_addable_quantity: 2,
+      availability: createCatalogAvailability(2),
       values: {},
     };
     resolveProduct({
@@ -688,7 +705,7 @@ describe('ProductDetailPageComponent', () => {
       max_units_per_user: 2,
       selected_variant: {
         id: 322,
-        maximum_addable_quantity: 2,
+        availability: createCatalogAvailability(2),
         images: [],
         values: { event_date: '20' },
       },
@@ -712,14 +729,14 @@ describe('ProductDetailPageComponent', () => {
   it('disables purchase actions for tracked variants without stock', async () => {
     const trackedVariant = {
       id: 654,
-      maximum_addable_quantity: 0,
+      availability: createCatalogAvailability(0),
       values: {},
     };
     resolveProduct({
       ...mockProduct,
       selected_variant: {
         id: 654,
-        maximum_addable_quantity: 0,
+        availability: createCatalogAvailability(0),
         images: [],
         values: {},
       },
diff --git a/src/app/features/store/pages/product-detail-page/product-detail-page.resolver.spec.ts b/src/app/features/store/pages/product-detail-page/product-detail-page.resolver.spec.ts
index 06656d9..7adbf03 100644
--- a/src/app/features/store/pages/product-detail-page/product-detail-page.resolver.spec.ts
+++ b/src/app/features/store/pages/product-detail-page/product-detail-page.resolver.spec.ts
@@ -5,6 +5,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { CatalogItemDetail } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { createCatalogAvailability } from '../../../../core/services/catalog/catalog-availability';
 import {
   PRODUCT_DETAIL_ERROR_MESSAGE,
   PRODUCT_DETAIL_INVALID_ID_MESSAGE,
@@ -29,7 +30,7 @@ describe('productDetailResolver', () => {
     has_tickets: false,
     minimum_use_date: null,
     maximum_use_date: null,
-    maximum_addable_quantity: 0,
+    availability: createCatalogAvailability(0),
     attributes: [],
     variants: [],
   };
diff --git a/src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts b/src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts
index 60367d9..6d7d4a0 100644
--- a/src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts
+++ b/src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts
@@ -13,6 +13,7 @@ import {
 } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
 import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
+import { createCatalogAvailability } from '../../../../core/services/catalog/catalog-availability';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -83,6 +84,7 @@ const pageOneItems: CatalogFeaturedItem[] = [
     nombre: 'Auriculares Bluetooth',
     precio: '24999.00',
     image: '/catalog/auriculares.jpg',
+    availability: createCatalogAvailability(null),
   },
   {
     id: 2,
@@ -90,6 +92,7 @@ const pageOneItems: CatalogFeaturedItem[] = [
     nombre: 'Teclado Mecanico',
     precio: '18999.00',
     image: null,
+    availability: createCatalogAvailability(null),
   },
 ];
 
@@ -406,7 +409,14 @@ describe('StoreHomePageComponent', () => {
 
   it('requests another page for the selected featured group', async () => {
     const pageTwoItems: CatalogFeaturedItem[] = [
-      { id: 3, type: 'product', nombre: 'Mouse Gamer', precio: '15999.00', image: null },
+      {
+        id: 3,
+        type: 'product',
+        nombre: 'Mouse Gamer',
+        precio: '15999.00',
+        image: null,
+        availability: createCatalogAvailability(null),
+      },
     ];
     const catalogServiceStub = {
       getCatalog: vi.fn(),
diff --git a/src/app/shared/components/product-list/product-list.component.spec.ts b/src/app/shared/components/product-list/product-list.component.spec.ts
index 32ecc20..35b12db 100644
--- a/src/app/shared/components/product-list/product-list.component.spec.ts
+++ b/src/app/shared/components/product-list/product-list.component.spec.ts
@@ -6,6 +6,7 @@ import { of } from 'rxjs';
 import { ApiPaginatedResponse } from '../../../core/services/api-paginated-response.interface';
 import { CartService } from '../../../core/services/cart/cart.service';
 import { CatalogService } from '../../../core/services/catalog/catalog.service';
+import { createCatalogAvailability } from '../../../core/services/catalog/catalog-availability';
 import {
   CatalogFeaturedItems,
   CatalogGroupLayout,
@@ -23,6 +24,7 @@ describe('ProductListComponent', () => {
       descripcion: 'Primera descripcion',
       precio: '100.00',
       image: '/images/one.png',
+      availability: createCatalogAvailability(null),
       variants: [],
     },
     {
@@ -32,6 +34,7 @@ describe('ProductListComponent', () => {
       descripcion: 'Segunda descripcion',
       precio: 200,
       image: null,
+      availability: createCatalogAvailability(null),
       variants: [],
     },
   ];
@@ -193,8 +196,8 @@ describe('ProductListComponent', () => {
     const itemWithVariants: ProductListItem = {
       ...items[0],
       variants: [
-        { id: 91, maximum_addable_quantity: 3, values: { fecha: '10 de octubre' } },
-        { id: 92, maximum_addable_quantity: 4, values: { fecha: '11 de octubre' } },
+        { id: 91, availability: createCatalogAvailability(3), values: { fecha: '10 de octubre' } },
+        { id: 92, availability: createCatalogAvailability(4), values: { fecha: '11 de octubre' } },
       ],
     };
     const fixture = await render('column_with_cart', [itemWithVariants]);
@@ -220,7 +223,7 @@ describe('ProductListComponent', () => {
       variants: [
         {
           id: 91,
-          maximum_addable_quantity: 2,
+          availability: createCatalogAvailability(2),
           values: { fecha: '10 de octubre' },
         },
       ],
@@ -248,7 +251,7 @@ describe('ProductListComponent', () => {
       variants: [
         {
           id: 91,
-          maximum_addable_quantity: 0,
+          availability: createCatalogAvailability(0),
           values: { fecha: '10 de octubre' },
         },
       ],
@@ -304,7 +307,7 @@ describe('ProductListComponent', () => {
         {
           id: 401,
           precio: '10000.00',
-          maximum_addable_quantity: 1,
+          availability: createCatalogAvailability(1),
           values: {
             tipo: { value: 'vip', label: 'VIP' },
             sector: { value: 'a', label: 'Sector A' },
@@ -315,7 +318,7 @@ describe('ProductListComponent', () => {
         {
           id: 402,
           precio: '12000.00',
-          maximum_addable_quantity: 1,
+          availability: createCatalogAvailability(1),
           values: {
             tipo: { value: 'vip', label: 'VIP' },
             sector: { value: 'a', label: 'Sector A' },
diff --git a/src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.spec.ts b/src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.spec.ts
index 4d9d902..204db94 100644
--- a/src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.spec.ts
+++ b/src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.spec.ts
@@ -58,11 +58,22 @@ describe('ProductVerticalWithCartCardComponent', () => {
 
   it('shows the backend availability message with the reusable tooltip', async () => {
     const fixture = await createComponent();
-    fixture.componentRef.setInput('maximumAddableQuantity', 0);
-    fixture.componentRef.setInput(
-      'unavailableMessage',
-      'Alcanzaste el cupo máximo permitido para este producto.',
-    );
+    fixture.componentRef.setInput('availability', {
+      maximum_quantity: 0,
+      restrictions: [
+        {
+          code: 'user_quota_reached',
+          message: 'Alcanzaste el cupo máximo permitido para este producto.',
+          scope: 'product',
+        },
+      ],
+      capabilities: {
+        select_variant: false,
+        change_quantity: false,
+        add_to_cart: false,
+        buy_now: false,
+      },
+    });
     fixture.detectChanges();
 
     const tooltip = (fixture.nativeElement as HTMLElement).querySelector('app-tooltip');
diff --git a/src/app/shared/components/variant-selector/variant-selector.component.spec.ts b/src/app/shared/components/variant-selector/variant-selector.component.spec.ts
index 47763a5..c72276d 100644
--- a/src/app/shared/components/variant-selector/variant-selector.component.spec.ts
+++ b/src/app/shared/components/variant-selector/variant-selector.component.spec.ts
@@ -62,6 +62,8 @@ describe('VariantSelectorComponent', () => {
     ]);
     fixture.componentRef.setInput('selectedVariant', 2);
     fixture.detectChanges();
+    await fixture.whenStable();
+    fixture.detectChanges();
 
     const selects = Array.from(
       fixture.nativeElement.querySelectorAll('select'),
@@ -80,6 +82,28 @@ describe('VariantSelectorComponent', () => {
     expect(fixture.componentInstance.selectedVariant()).toBe(1);
   });
 
+  it('does not offer variants whose availability forbids selection', async () => {
+    await TestBed.configureTestingModule({
+      imports: [VariantSelectorComponent],
+    }).compileComponents();
+    const fixture = TestBed.createComponent(VariantSelectorComponent);
+    fixture.componentRef.setInput('variants', [
+      { id: 1, values: { talle: 'S' } },
+      {
+        id: 2,
+        values: { talle: 'M' },
+        availability: { capabilities: { select_variant: false } },
+      },
+    ]);
+    fixture.detectChanges();
+    await fixture.whenStable();
+    fixture.detectChanges();
+
+    expect(fixture.nativeElement.textContent).toContain('S');
+    expect(fixture.nativeElement.textContent).not.toContain('M');
+    expect(fixture.componentInstance.selectedVariant()).toBe(1);
+  });
+
   it('requires manual selections when autoSelectFirst is disabled', async () => {
     await TestBed.configureTestingModule({
       imports: [VariantSelectorComponent],