diff --git a/apps/api/src/app/server.js b/apps/api/src/app/server.js
index ada484b..4e63cef 100644
--- a/apps/api/src/app/server.js
+++ b/apps/api/src/app/server.js
@@ -139,7 +139,7 @@ async function startServer() {
       saleService: createSaleService({ saleRepository }),
       acquisitionService: createAcquisitionService({ acquisitionRepository }),
     }),
-    pricingService: createPricingService({ pricingRepository, pricingRefreshJobRepository }),
+    pricingService: createPricingService({ pricingRepository, pricingRefreshJobRepository, providerMappingRepository }),
     providerMappingService: createProviderMappingService({ providerMappingRepository }),
     publicListingService: createPublicListingService({ listingRepository, publicImageService }),
     productService: createProductService({ productRepository }),
diff --git a/apps/api/src/modules/pricing/repositories/provider-mapping-repository.js b/apps/api/src/modules/pricing/repositories/provider-mapping-repository.js
index 7afe221..692ac74 100644
--- a/apps/api/src/modules/pricing/repositories/provider-mapping-repository.js
+++ b/apps/api/src/modules/pricing/repositories/provider-mapping-repository.js
@@ -23,6 +23,19 @@ export function createProviderMappingRepository(db) {
         .then((rows) => rows.map(({ mapping }) => mapping));
     },
 
+    async findActiveForSeller(productId, sellerId, providerId) {
+      const conditions = [
+        eq(pricingProviderMappings.productId, productId),
+        eq(products.sellerId, sellerId),
+        eq(pricingProviderMappings.status, 'ACTIVE'),
+      ];
+      if (providerId) conditions.push(eq(pricingProviderMappings.providerId, providerId));
+      const [row] = await db.select({ mapping: pricingProviderMappings }).from(pricingProviderMappings)
+        .innerJoin(products, eq(products.id, pricingProviderMappings.productId))
+        .where(and(...conditions));
+      return row?.mapping ?? null;
+    },
+
     async disableForSeller(id, sellerId) {
       const [mapping] = await db.select().from(pricingProviderMappings)
         .innerJoin(products, eq(products.id, pricingProviderMappings.productId))
diff --git a/apps/api/src/modules/pricing/services/pricing-service.js b/apps/api/src/modules/pricing/services/pricing-service.js
index eb73885..1fa0785 100644
--- a/apps/api/src/modules/pricing/services/pricing-service.js
+++ b/apps/api/src/modules/pricing/services/pricing-service.js
@@ -1,7 +1,7 @@
 import { createPricingObservation } from '../domain/pricing-observation.js';
 import { createApplicationError } from '../../../shared/errors/application-error.js';
 
-export function createPricingService({ pricingRepository, pricingProviderRegistry, pricingRefreshJobRepository }) {
+export function createPricingService({ pricingRepository, pricingProviderRegistry, pricingRefreshJobRepository, providerMappingRepository }) {
   return {
     async addObservation({ sellerId, ...input }) {
       const observation = createPricingObservation(input);
@@ -55,7 +55,15 @@ export function createPricingService({ pricingRepository, pricingProviderRegistr
 
     async enqueueRefresh({ sellerId, inventoryItemId, providerId, productId, conditionId }) {
       if (!pricingRefreshJobRepository) throw createApplicationError('PRICING_QUEUE_UNAVAILABLE', 'Pricing refresh queue is unavailable.', 503);
-      const job = await pricingRefreshJobRepository.create({ sellerId, inventoryItemId, providerId, productId, conditionId });
+      const mapping = await providerMappingRepository?.findActiveForSeller(productId, sellerId, providerId);
+      if (!mapping) throw createApplicationError('PRICING_PROVIDER_MAPPING_NOT_FOUND', 'No active pricing provider mapping exists for this product.', 409);
+      const job = await pricingRefreshJobRepository.create({
+        sellerId,
+        inventoryItemId,
+        providerId: mapping.providerId,
+        productId,
+        conditionId,
+      });
       return job;
     },
 
diff --git a/apps/api/tests/application/pricing-service.test.js b/apps/api/tests/application/pricing-service.test.js
index 5e79ae7..937a2dd 100644
--- a/apps/api/tests/application/pricing-service.test.js
+++ b/apps/api/tests/application/pricing-service.test.js
@@ -55,9 +55,11 @@ test('enqueues a seller-scoped pricing refresh and reads its status', async () =
       async create(input) { return { id: 'job-1', status: 'PENDING', ...input }; },
       async findByIdForSeller(id, sellerId) { return { id, sellerId, status: 'COMPLETED' }; },
     },
+    providerMappingRepository: { async findActiveForSeller() { return { providerId: 'mapped-provider' }; } },
   });
 
   const job = await service.enqueueRefresh({ sellerId: 'seller-1', inventoryItemId: 'item-1', providerId: 'provider-1', productId: 'product-1', conditionId: 'condition-1' });
   assert.equal(job.status, 'PENDING');
+  assert.equal(job.providerId, 'mapped-provider');
   assert.equal((await service.getJob({ sellerId: 'seller-1', jobId: job.id })).status, 'COMPLETED');
 });
\ No newline at end of file
diff --git a/apps/api/tests/http/pricing-routes.test.js b/apps/api/tests/http/pricing-routes.test.js
index 1380454..81cf488 100644
--- a/apps/api/tests/http/pricing-routes.test.js
+++ b/apps/api/tests/http/pricing-routes.test.js
@@ -70,4 +70,30 @@ test('enqueues a pricing refresh and exposes seller-scoped job status', async (t
   const jobResponse = await app.inject({ method: 'GET', url: '/api/v1/admin/jobs/job-1' });
   assert.equal(jobResponse.statusCode, 200);
   assert.equal(jobResponse.json().data.status, 'COMPLETED');
+});
+
+test('returns a conflict when refresh has no active product mapping', async (testContext) => {
+  const app = buildApp({
+    authenticateAdmin: async () => ({ sellerId: 'seller-1' }),
+    authorizeUnsafeRequest: async () => {},
+    pricingService: {
+      async enqueueRefresh() {
+        const error = new Error('No active pricing provider mapping exists for this product.');
+        error.code = 'PRICING_PROVIDER_MAPPING_NOT_FOUND';
+        error.statusCode = 409;
+        throw error;
+      },
+    },
+  });
+  testContext.after(() => app.close());
+
+  const response = await app.inject({
+    method: 'POST',
+    url: '/api/v1/admin/inventory/item-1/pricing/refresh',
+    headers: { 'x-csrf-token': 'csrf' },
+    payload: { productId: 'product-1', conditionId: 'condition-1' },
+  });
+
+  assert.equal(response.statusCode, 409);
+  assert.equal(response.json().error.code, 'PRICING_PROVIDER_MAPPING_NOT_FOUND');
 });
\ No newline at end of file
diff --git a/docs/API.md b/docs/API.md
index 16b2b90..aa3d8b4 100644
--- a/docs/API.md
+++ b/docs/API.md
@@ -130,7 +130,8 @@ condition label, and public image URLs.
 Pricing refresh returns `202 Accepted` with a durable job identifier and
 `PENDING` status. Poll the job endpoint for `PROCESSING`, `COMPLETED`, or
 `FAILED`; job status reads are seller-scoped and expose only safe status/error
-metadata.
+metadata. Refresh enqueue resolves the provider from an active Product-level
+mapping and returns `409` when no mapping exists.
 
 ## Provider matching
 
diff --git a/docs/IMPLEMENTATION-STATUS.md b/docs/IMPLEMENTATION-STATUS.md
index 106228d..95b9127 100644
--- a/docs/IMPLEMENTATION-STATUS.md
+++ b/docs/IMPLEMENTATION-STATUS.md
@@ -152,6 +152,7 @@ Work through one bounded vertical slice at a time. The linked documentation rema
 - The pricing refresh worker now claims durable PostgreSQL jobs with row locking, persists completed/failed outcomes, and routes provider observations through the pricing service; configured external providers remain deployment work.
 - Pricing refresh requests now enqueue seller-scoped jobs and expose a safe `GET /api/v1/admin/jobs/:id` polling contract instead of doing provider work inline.
 - Product-level provider mappings now persist seller-scoped `PRODUCT`/`SEARCH` relationships and support active listing and controlled disabling.
+- Pricing refresh enqueue now resolves its provider from an active Product mapping and rejects unmapped Products explicitly.
 - `npm install` currently reports dependency audit findings. Review and remediate them before production deployment; do not use `npm audit fix --force` without reviewing its changes.
 
 ## Local Commands