diff --git a/apps/backend/src/services/fulfillment/fulfillment-routing.integration.test.ts b/apps/backend/src/services/fulfillment/fulfillment-routing.integration.test.ts
index 66db5f89..189b3570 100644
--- a/apps/backend/src/services/fulfillment/fulfillment-routing.integration.test.ts
+++ b/apps/backend/src/services/fulfillment/fulfillment-routing.integration.test.ts
@@ -34,6 +34,7 @@ test(
     const orderIds: number[] = []
     const orderItemIds: number[] = []
     const internalSkus = [manualSku, missingAffiliateSku, voucherSku]
+    let generatedVoucherProductId: number | null = null
 
     async function createPendingOrderItem(sku: string) {
       const order = await query<{ id: number }>(
@@ -118,6 +119,7 @@ test(
       assert.equal(switchedItem.rows[0]?.fulfillment_channel, 'third_party_voucher')
       assert.equal(switchedItem.rows[0]?.original_channel, 'manual')
       assert.ok(switchedItem.rows[0]?.canonical_sku?.startsWith('tpv:'))
+      generatedVoucherProductId = Number(switchedItem.rows[0]?.canonical_product_id || 0) || null
 
       const missingAffiliateItemId = await createPendingOrderItem(missingAffiliateSku)
       const affiliateFailed = await assignChannelByInternalSku({
@@ -193,6 +195,24 @@ test(
          WHERE provider = '91kaquan' AND shop_id = $1 AND match_key = ANY($2::text[])`,
         [shopId, internalSkus],
       )
+      if (generatedVoucherProductId) {
+        await query(`DELETE FROM sales_daily_facts WHERE canonical_product_id = $1`, [
+          generatedVoucherProductId,
+        ])
+        await query(`DELETE FROM cost_snapshots WHERE canonical_product_id = $1`, [
+          generatedVoucherProductId,
+        ])
+        await query(`DELETE FROM channel_product_mappings WHERE canonical_product_id = $1`, [
+          generatedVoucherProductId,
+        ])
+        await query(`DELETE FROM cost_versions WHERE canonical_product_id = $1`, [
+          generatedVoucherProductId,
+        ])
+        await query(`DELETE FROM product_catalog WHERE id = $1 AND canonical_sku = $2`, [
+          generatedVoucherProductId,
+          `tpv:${manualSku}`,
+        ])
+      }
       await closeDb()
     }
   },