diff --git a/apps/backend/src/routes/admin/cost-center-catalog.ts b/apps/backend/src/routes/admin/cost-center-catalog.ts
index 207f0385..dbfad7fb 100644
--- a/apps/backend/src/routes/admin/cost-center-catalog.ts
+++ b/apps/backend/src/routes/admin/cost-center-catalog.ts
@@ -47,7 +47,7 @@ const router = Router()
 router.get(
   '/cost-center/template-bootstrap/preview',
   requireAdminPermission('finance.view'),
-  createJsonHandler(() => previewAdminTemplateProductBootstrap(), {
+  createJsonHandler((req) => previewAdminTemplateProductBootstrap(req.query as JsonObject), {
     successMessage: 'ok',
     errorMessage: '读取接单模板初始化预览失败',
     scope: '[admin/cost-center/template-bootstrap/preview]',
@@ -156,7 +156,7 @@ router.post(
 router.post(
   '/cost-center/work-order-products/backfill',
   requireAdminPermission('finance.config'),
-  createJsonHandler(() => backfillAdminWorkOrderProductSkus(), {
+  createJsonHandler((req) => backfillAdminWorkOrderProductSkus(bodyOf(req)), {
     successMessage: '接单平台商品已回填',
     errorMessage: '回填接单平台商品失败',
     scope: '[admin/cost-center/work-order-products/backfill]',
diff --git a/apps/backend/src/services/cost-center/product-catalog-service.ts b/apps/backend/src/services/cost-center/product-catalog-service.ts
index cf9f8f90..f87d5e39 100644
--- a/apps/backend/src/services/cost-center/product-catalog-service.ts
+++ b/apps/backend/src/services/cost-center/product-catalog-service.ts
@@ -10,6 +10,7 @@ import { query } from '../../db/client.js'
 import type { AdminSession } from '../admin/admin-auth-service.js'
 import type { JsonObject } from '../../types/json.js'
 import { createHttpError } from '../../utils/http.js'
+import { resolveFinanceDateRange } from '../../utils/finance-date-range.js'
 import { formatShanghaiDate, shiftDate } from '../../utils/finance-date-range.js'
 import { nowIso } from '../../utils/time.js'
 import { normalizeMatchText, normalizeSkuSeriesEquivalence } from '../product-match/normalize.js'
@@ -978,6 +979,11 @@ export async function backfillAdminProductMappings(payload: JsonObject = {}) {
   const limit = Math.min(20000, Math.max(1, Math.trunc(Number(payload.limit) || 5000)))
   const all = payload.all === true || payload.all === 'true'
   const maxBatches = all ? 40 : 1
+  const range = resolveOptionalDateRange(payload)
+  const dateSql = range
+    ? `AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date BETWEEN $4::date AND $5::date`
+    : ''
+  const rangeParams = range ? [range.fromDate, range.toDate] : []
   let updatedCount = 0
   let batches = 0
   let lastId = 0
@@ -1015,10 +1021,11 @@ export async function backfillAdminProductMappings(payload: JsonObject = {}) {
         WHERE oi.canonical_product_id IS NULL
           AND oi.id > $1
           AND ($2 = '' OR o.provider = $2)
+          ${dateSql}
         ORDER BY oi.id
         LIMIT $3
       `,
-      [lastId, provider, limit],
+      [lastId, provider, limit, ...rangeParams],
     )
     if (itemsResult.rows.length === 0) break
 
@@ -1078,8 +1085,9 @@ export async function backfillAdminProductMappings(payload: JsonObject = {}) {
       JOIN orders o ON o.id = oi.order_id
       WHERE oi.canonical_product_id IS NULL
         AND ($1 = '' OR o.provider = $1)
+        ${dateSql.replace('$4', '$2').replace('$5', '$3')}
     `,
-    [provider],
+    [provider, ...rangeParams],
   )
   return {
     updatedCount,
@@ -1155,6 +1163,11 @@ export async function backfillAdminNormalizedQuantities(payload: JsonObject = {}
   const limit = Math.min(50000, Math.max(1, Math.trunc(Number(payload.limit) || 20000)))
   const all = payload.all === true || payload.all === 'true'
   const maxBatches = all ? 40 : 1
+  const range = resolveOptionalDateRange(payload)
+  const dateSql = range
+    ? `AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date BETWEEN $2::date AND $3::date`
+    : ''
+  const rangeParams = range ? [range.fromDate, range.toDate] : []
   let updatedCount = 0
   let batches = 0
 
@@ -1168,16 +1181,18 @@ export async function backfillAdminNormalizedQuantities(payload: JsonObject = {}
       normalized_quantity: number | null
     }>(
       `
-        SELECT id, sku_name, sku_code, normalized_sku_name, normalized_sku_series,
-               normalized_quantity
-        FROM order_items
-        WHERE normalized_quantity IS NULL
-           OR normalized_sku_name IS NULL
-           OR normalized_sku_series IS NULL
-        ORDER BY id
+        SELECT oi.id, oi.sku_name, oi.sku_code, oi.normalized_sku_name,
+               oi.normalized_sku_series, oi.normalized_quantity
+        FROM order_items oi
+        ${range ? 'JOIN orders o ON o.id = oi.order_id' : ''}
+        WHERE (oi.normalized_quantity IS NULL
+           OR oi.normalized_sku_name IS NULL
+           OR oi.normalized_sku_series IS NULL)
+          ${dateSql.replaceAll('oi.', 'oi.')}
+        ORDER BY oi.id
         LIMIT $1
       `,
-      [limit],
+      [limit, ...rangeParams],
     )
     if (result.rows.length === 0) break
 
@@ -1218,10 +1233,13 @@ export async function backfillAdminNormalizedQuantities(payload: JsonObject = {}
 
   const remainingResult = await query<{ total: number }>(
     `SELECT COUNT(*)::int AS total
-     FROM order_items
-     WHERE normalized_quantity IS NULL
-        OR normalized_sku_name IS NULL
-        OR normalized_sku_series IS NULL`,
+     FROM order_items oi
+     ${range ? 'JOIN orders o ON o.id = oi.order_id' : ''}
+     WHERE (oi.normalized_quantity IS NULL
+        OR oi.normalized_sku_name IS NULL
+        OR oi.normalized_sku_series IS NULL)
+       ${dateSql.replace('$2', '$1').replace('$3', '$2')}`,
+    rangeParams,
   )
   return {
     updatedCount,
@@ -1231,6 +1249,16 @@ export async function backfillAdminNormalizedQuantities(payload: JsonObject = {}
   }
 }
 
+function resolveOptionalDateRange(payload: JsonObject) {
+  const rawFrom = payload.dateFrom ?? payload.date_from
+  const rawTo = payload.dateTo ?? payload.date_to
+  if (!rawFrom && !rawTo) return null
+  return resolveFinanceDateRange(
+    { dateFrom: rawFrom, dateTo: rawTo },
+    { defaultDays: 30, maxDays: 400 },
+  )
+}
+
 export async function getProductRow(id: number) {
   const result = await query<ProductRow>('SELECT * FROM product_catalog WHERE id = $1 LIMIT 1', [
     id,
diff --git a/apps/backend/src/services/cost-center/template-bootstrap-service.ts b/apps/backend/src/services/cost-center/template-bootstrap-service.ts
index d1c22e5c..4f57be21 100644
--- a/apps/backend/src/services/cost-center/template-bootstrap-service.ts
+++ b/apps/backend/src/services/cost-center/template-bootstrap-service.ts
@@ -8,6 +8,7 @@
 import { query, withTransaction } from '../../db/client.js'
 import type { JsonObject } from '../../types/json.js'
 import { createHttpError } from '../../utils/http.js'
+import { resolveFinanceDateRange } from '../../utils/finance-date-range.js'
 import { nowIso } from '../../utils/time.js'
 import type { AdminSession } from '../admin/admin-auth-service.js'
 import { normalizeMatchText, normalizeSkuSeriesEquivalence } from '../product-match/normalize.js'
@@ -19,8 +20,9 @@ import {
 } from './product-catalog-service.js'
 import { syncAdminWorkOrderTemplateCostVersions } from './work-order-product-service.js'
 
-export async function previewAdminTemplateProductBootstrap() {
-  const data = await loadTemplateProductBootstrapData()
+export async function previewAdminTemplateProductBootstrap(payload: JsonObject = {}) {
+  const range = resolveBootstrapDateRange(payload)
+  const data = await loadTemplateProductBootstrapData(range)
   const plan = buildTemplateMappingPlan(data.evidenceRows)
   const templateRuleKeys = new Set(data.templates.map((row) => row.rule_key))
   const candidates = plan.candidates.filter(
@@ -33,6 +35,8 @@ export async function previewAdminTemplateProductBootstrap() {
   const usedRuleIds = new Set(data.evidenceRows.map((row) => Number(row.product_rule_id)))
   const candidatesByMatchType = countMappingCandidates(candidates)
   return {
+    dateFrom: range.fromDate,
+    dateTo: range.toDate,
     templateCount: data.templates.length,
     productExistingCount: data.templates.length - data.productsToCreate.length,
     productCreateCount: data.productsToCreate.length,
@@ -75,10 +79,11 @@ export async function applyAdminTemplateProductBootstrap(
   _session?: AdminSession,
 ) {
   const repair = payload.repair !== false
+  const range = resolveBootstrapDateRange(payload)
   const resetResult = repair
-    ? await resetImportedTemplateProductBootstrap()
+    ? await resetImportedTemplateProductBootstrap(range)
     : { deletedMappingCount: 0, resetOrderItemCount: 0 }
-  const data = await loadTemplateProductBootstrapData()
+  const data = await loadTemplateProductBootstrapData(range)
   if (data.templates.length === 0) {
     throw createHttpError('没有可导入的接单模板', {
       statusCode: 400,
@@ -185,12 +190,24 @@ export async function applyAdminTemplateProductBootstrap(
   })
 
   // 名称/系列键必须先于映射回填；所有批次都放在事务外，避免语句超时。
-  await backfillAdminNormalizedQuantities({ limit: 50000, all: true })
-  const mappingBackfill = await backfillAdminProductMappings({ limit: 20000, all: true })
+  await backfillAdminNormalizedQuantities({
+    limit: 50000,
+    all: true,
+    dateFrom: range.fromDate,
+    dateTo: range.toDate,
+  })
+  const mappingBackfill = await backfillAdminProductMappings({
+    limit: 20000,
+    all: true,
+    dateFrom: range.fromDate,
+    dateTo: range.toDate,
+  })
   mappedOrderItemCount = mappingBackfill.updatedCount
   const templateCosts = await syncAdminWorkOrderTemplateCostVersions()
 
   return {
+    dateFrom: range.fromDate,
+    dateTo: range.toDate,
     templateCount: data.templates.length,
     createdProductCount,
     reusedProductCount,
@@ -556,7 +573,7 @@ function compareMappingCandidates(left: TemplateMappingCandidate, right: Templat
   )
 }
 
-async function resetImportedTemplateProductBootstrap() {
+async function resetImportedTemplateProductBootstrap(range: { fromDate: string; toDate: string }) {
   let resetOrderItemCount = 0
   for (let batch = 0; batch < 20; batch += 1) {
     const result = await query<{ id: number }>(
@@ -589,6 +606,8 @@ async function resetImportedTemplateProductBootstrap() {
              )
            )
           WHERE oi.canonical_product_id IS NOT NULL
+            AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+              BETWEEN $1::date AND $2::date
           LIMIT 20000
         )
         UPDATE order_items oi
@@ -598,21 +617,31 @@ async function resetImportedTemplateProductBootstrap() {
         WHERE oi.id = c.id
         RETURNING oi.id
       `,
+      [range.fromDate, range.toDate],
     )
     resetOrderItemCount += result.rowCount || 0
     if ((result.rowCount || 0) < 20000) break
   }
   const deleted = await query(
     `
-      DELETE FROM channel_product_mappings
-      WHERE source = 'import'
-        AND note LIKE '接单模板 %自动初始化%'
+      DELETE FROM channel_product_mappings m
+      WHERE m.source = 'import'
+        AND m.note LIKE '接单模板 %自动初始化%'
+        AND EXISTS (
+          SELECT 1
+          FROM order_items oi
+          JOIN orders o ON o.id = oi.order_id
+          WHERE oi.canonical_product_id = m.canonical_product_id
+            AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+              BETWEEN $1::date AND $2::date
+        )
     `,
+    [range.fromDate, range.toDate],
   )
   return { deletedMappingCount: deleted.rowCount || 0, resetOrderItemCount }
 }
 
-async function loadTemplateProductBootstrapData() {
+async function loadTemplateProductBootstrapData(range: { fromDate: string; toDate: string }) {
   const [templatesResult, evidenceResult, productsResult, mappingsResult] = await Promise.all([
     query<TemplateBootstrapTemplateRow>(
       `
@@ -656,6 +685,8 @@ async function loadTemplateProductBootstrapData() {
         JOIN work_orders wo ON wo.order_item_id = oi.id
         JOIN work_product_rules r ON r.id = wo.product_rule_id AND r.enabled = TRUE
         WHERE wo.product_rule_id IS NOT NULL
+          AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+            BETWEEN $1::date AND $2::date
         GROUP BY
           o.provider,
           o.shop_id,
@@ -665,6 +696,7 @@ async function loadTemplateProductBootstrapData() {
           r.rule_key
         ORDER BY o.provider, o.shop_id, oi.sku_code, oi.sku_name, wo.product_rule_id
       `,
+      [range.fromDate, range.toDate],
     ),
     query<{ id: number; canonical_sku: string; canonical_name: string }>(
       'SELECT id, canonical_sku, canonical_name FROM product_catalog',
@@ -681,7 +713,9 @@ async function loadTemplateProductBootstrapData() {
     ),
   ])
 
-  const templates = templatesResult.rows
+  const usedRuleIds = new Set(evidenceResult.rows.map((row) => Number(row.product_rule_id)))
+  // 只初始化时间范围内真正有工单证据的模板，避免把很早以前、已不再使用的模板商品重新带出来。
+  const templates = templatesResult.rows.filter((row) => usedRuleIds.has(Number(row.id)))
   const productByCanonicalSku = new Map(
     productsResult.rows.map((row) => [row.canonical_sku, Number(row.id)]),
   )
@@ -737,6 +771,14 @@ export function inferTemplateUnitName(productName: string) {
   return '件'
 }
 
+function resolveBootstrapDateRange(payload: JsonObject) {
+  const range = resolveFinanceDateRange(
+    { dateFrom: payload.dateFrom, dateTo: payload.dateTo },
+    { defaultDays: 30, maxDays: 400 },
+  )
+  return { fromDate: range.fromDate, toDate: range.toDate }
+}
+
 function normalizeProductNameKey(value: unknown) {
   return String(value || '')
     .normalize('NFKC')
diff --git a/apps/backend/src/services/cost-center/work-order-product-service.ts b/apps/backend/src/services/cost-center/work-order-product-service.ts
index e8b42a30..7a70aa1d 100644
--- a/apps/backend/src/services/cost-center/work-order-product-service.ts
+++ b/apps/backend/src/services/cost-center/work-order-product-service.ts
@@ -2,6 +2,7 @@
  * 接单平台（work_order）商品回填与模板发单金额同步。
  */
 import { query } from '../../db/client.js'
+import { resolveFinanceDateRange } from '../../utils/finance-date-range.js'
 import { nowIso } from '../../utils/time.js'
 import { rebuildFactsForRange } from './affiliate-product-service.js'
 import { WORK_ORDER_TEMPLATE_COST_BASELINE } from './cost-center-shared.js'
@@ -14,6 +15,14 @@ type WorkOrderSkuBackfillRow = {
 
 const WORK_ORDER_BACKFILL_BATCH_SIZE = 20000
 
+function resolveWorkOrderRange(payload: Record<string, unknown>) {
+  const range = resolveFinanceDateRange(
+    { dateFrom: payload.dateFrom, dateTo: payload.dateTo },
+    { defaultDays: 30, maxDays: 400 },
+  )
+  return { fromDate: range.fromDate, toDate: range.toDate }
+}
+
 /**
  * 回填接单平台订单项的标准商品。
  *
@@ -21,8 +30,9 @@ const WORK_ORDER_BACKFILL_BATCH_SIZE = 20000
  * 仍无法归一的长尾项，再按 `provider + shop_id + sku_code + normalized_sku_name`
  * 补建 `wo:` 商品和 `sku_code_name` 渠道映射，保证后续同类订单能自动命中。
  */
-export async function backfillAdminWorkOrderProductSkus() {
+export async function backfillAdminWorkOrderProductSkus(payload: Record<string, unknown> = {}) {
   const now = nowIso()
+  const range = resolveWorkOrderRange(payload)
   // order_item_id 有唯一索引，这里可以直接 count，避免 DISTINCT ON 被
   // 三个子查询反复物化后撞 15 秒语句超时。
   const result = await query<WorkOrderSkuBackfillRow>(
@@ -41,7 +51,10 @@ export async function backfillAdminWorkOrderProductSkus() {
       JOIN order_items oi ON oi.id = wo.order_item_id
       JOIN orders o ON o.id = oi.order_id
       WHERE wo.order_item_id IS NOT NULL
+        AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+          BETWEEN $1::date AND $2::date
     `,
+    [range.fromDate, range.toDate],
   )
 
   // 单条 UPDATE 覆盖十几万行会撞 15 秒语句超时；按订单项 id 分批，
@@ -57,10 +70,14 @@ export async function backfillAdminWorkOrderProductSkus() {
             wo.order_item_id AS id,
             wo.product_rule_id
           FROM work_orders wo
+          JOIN order_items oi ON oi.id = wo.order_item_id
+          JOIN orders o ON o.id = oi.order_id
           WHERE wo.order_item_id IS NOT NULL
-            AND wo.order_item_id > $1
+            AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+              BETWEEN $1::date AND $2::date
+            AND wo.order_item_id > $3
           ORDER BY wo.order_item_id, wo.id DESC
-          LIMIT $2
+          LIMIT $4
         )
         SELECT woi.id, p.id AS canonical_product_id
         FROM work_order_item woi
@@ -68,7 +85,7 @@ export async function backfillAdminWorkOrderProductSkus() {
         JOIN product_catalog p ON p.canonical_sku = 'tpl:' || wpr.rule_key
         ORDER BY woi.id
       `,
-      [lastRuleItemId, WORK_ORDER_BACKFILL_BATCH_SIZE],
+      [range.fromDate, range.toDate, lastRuleItemId, WORK_ORDER_BACKFILL_BATCH_SIZE],
     )
     if (targetRows.rows.length === 0) break
     const lastSelectedId = Number(targetRows.rows[targetRows.rows.length - 1]?.id || 0)
@@ -103,8 +120,11 @@ export async function backfillAdminWorkOrderProductSkus() {
           oi.normalized_sku_name AS name,
           MIN(oi.sku_name) AS sample_name
         FROM order_items oi
+        JOIN orders o ON o.id = oi.order_id
         WHERE oi.canonical_product_id IS NULL
           AND btrim(COALESCE(oi.normalized_sku_name, '')) <> ''
+          AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+            BETWEEN $2::date AND $3::date
           AND EXISTS (SELECT 1 FROM work_orders wo WHERE wo.order_item_id = oi.id)
         GROUP BY 1
       ),
@@ -138,7 +158,7 @@ export async function backfillAdminWorkOrderProductSkus() {
       SET updated_at = $1
       RETURNING (xmax = 0) AS inserted
     `,
-    [now],
+    [now, range.fromDate, range.toDate],
   )
 
   const tailMappings = await query<{ id: number }>(
@@ -154,6 +174,8 @@ export async function backfillAdminWorkOrderProductSkus() {
         JOIN orders o ON o.id = oi.order_id
         WHERE oi.canonical_product_id IS NULL
           AND btrim(COALESCE(oi.normalized_sku_name, '')) <> ''
+          AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+            BETWEEN $2::date AND $3::date
           AND EXISTS (SELECT 1 FROM work_orders wo WHERE wo.order_item_id = oi.id)
         GROUP BY 1, 2, 3, 5
       ),
@@ -183,7 +205,7 @@ export async function backfillAdminWorkOrderProductSkus() {
       ) DO NOTHING
       RETURNING id
     `,
-    [now],
+    [now, range.fromDate, range.toDate],
   )
 
   let lastTailItemId = 0
@@ -194,12 +216,15 @@ export async function backfillAdminWorkOrderProductSkus() {
         WITH tail AS (
           SELECT oi.id, oi.normalized_sku_name
           FROM order_items oi
+          JOIN orders o ON o.id = oi.order_id
           WHERE oi.canonical_product_id IS NULL
             AND btrim(COALESCE(oi.normalized_sku_name, '')) <> ''
+            AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+              BETWEEN $2::date AND $3::date
             AND oi.id > $1
             AND EXISTS (SELECT 1 FROM work_orders wo WHERE wo.order_item_id = oi.id)
           ORDER BY oi.id
-          LIMIT $2
+          LIMIT $4
         )
         SELECT t.id, p.id AS canonical_product_id
         FROM tail t
@@ -212,7 +237,7 @@ export async function backfillAdminWorkOrderProductSkus() {
         ) p ON TRUE
         ORDER BY t.id
       `,
-      [lastTailItemId, WORK_ORDER_BACKFILL_BATCH_SIZE],
+      [lastTailItemId, range.fromDate, range.toDate, WORK_ORDER_BACKFILL_BATCH_SIZE],
     )
     if (tailRows.rows.length === 0) break
     const lastSelectedId = Number(tailRows.rows[tailRows.rows.length - 1]?.id || 0)
@@ -248,9 +273,13 @@ export async function backfillAdminWorkOrderProductSkus() {
     `
       SELECT COUNT(*)::int AS total
       FROM order_items oi
+      JOIN orders o ON o.id = oi.order_id
       WHERE oi.canonical_product_id IS NULL
+        AND (COALESCE(o.paid_at, o.created_at) AT TIME ZONE 'Asia/Shanghai')::date
+          BETWEEN $1::date AND $2::date
         AND EXISTS (SELECT 1 FROM work_orders wo WHERE wo.order_item_id = oi.id)
     `,
+    [range.fromDate, range.toDate],
   )
   const remainingCount = Number(remainingResult.rows[0]?.total || 0)
   const matchedCount = Math.max(0, workOrderItemCount - remainingCount)
diff --git a/apps/frontend/src/pages/admin/cost-center/ProductCatalogPanel.tsx b/apps/frontend/src/pages/admin/cost-center/ProductCatalogPanel.tsx
index 072387b6..869ca293 100644
--- a/apps/frontend/src/pages/admin/cost-center/ProductCatalogPanel.tsx
+++ b/apps/frontend/src/pages/admin/cost-center/ProductCatalogPanel.tsx
@@ -35,7 +35,9 @@ import type { TableColumnsType } from 'antd'
 import PercentTable from '@/components/common/PercentTable'
 import { useQuery, useQueryClient } from '@tanstack/react-query'
 import { useEffect, useState } from 'react'
+import type { Dayjs } from 'dayjs'
 
+import { AdminRangePicker } from '@/components/admin/AdminDatePicker'
 import dayjs from '@/lib/dayjs'
 import {
   applyAdminTemplateProductBootstrap,
@@ -68,6 +70,11 @@ export function ProductCatalogPanel() {
   const queryClient = useQueryClient()
   const { canConfig, productSourceFilter, refreshAll } = useCostCenter()
   const [productForm] = Form.useForm<ProductFormValues>()
+  // 初始化/回填只处理最近 30 天，避免很早以前的乱 SKU 再次进入商品与映射。
+  const [backfillRange, setBackfillRange] = useState<[Dayjs, Dayjs]>([
+    dayjs().subtract(29, 'day').startOf('day'),
+    dayjs().endOf('day'),
+  ])
 
   const [productKeyword, setProductKeyword] = useState('')
   const [productRootCategoryId, setProductRootCategoryId] = useState<number | null>(null)
@@ -133,23 +140,35 @@ export function ProductCatalogPanel() {
       : null
   const productSubCategories = selectedProductRoot?.children || []
 
+  function backfillPayload() {
+    return {
+      dateFrom: backfillRange[0].format('YYYY-MM-DD'),
+      dateTo: backfillRange[1].format('YYYY-MM-DD'),
+    }
+  }
+
   async function runTemplateBootstrap() {
     setBootstrapPreviewing(true)
     try {
-      const response = await previewAdminTemplateProductBootstrap()
+      const response = await previewAdminTemplateProductBootstrap(backfillPayload())
       const data = response.data
       modal.confirm({
         title: '从接单模板初始化商品与映射',
         width: 720,
         content: (
           <Space direction="vertical" size={8}>
+            <Alert
+              type="info"
+              showIcon
+              message={`统计范围：${data.dateFrom} ~ ${data.dateTo}（默认最近 30 天）`}
+            />
             <span>
               启用接单模板 <strong>{data.templateCount}</strong> 个：将新建{' '}
               <strong>{data.productCreateCount}</strong> 个标准商品，复用{' '}
               <strong>{data.productExistingCount}</strong> 个已有商品。
             </span>
             <span>
-              根据历史工单中已命中的模板，将建立 <strong>{data.mappingCreateCount}</strong>{' '}
+              根据所选时间范围内工单命中的模板，将建立 <strong>{data.mappingCreateCount}</strong>{' '}
               条渠道映射：编码精确 <strong>{data.mappingCreateByMatchType.sku_code}</strong>{' '}
               条、编码 + 名称系列 <strong>{data.mappingCreateByMatchType.sku_code_series}</strong>{' '}
               条、 编码 + 精确名称 <strong>{data.mappingCreateByMatchType.sku_code_name}</strong>{' '}
@@ -157,10 +176,11 @@ export function ProductCatalogPanel() {
             </span>
             <span>
               预计可归一 <strong>{data.orderItemCoverCount}</strong> / {data.evidenceItemCount}{' '}
-              个有工单证据的订单项。
+              个范围内有工单证据的订单项。
             </span>
             <span>
-              <strong>{data.templatesWithoutWorkOrders}</strong> 个模板暂无历史工单，仍会先建商品。
+              <strong>{data.templatesWithoutWorkOrders}</strong>{' '}
+              个启用模板在范围内没有工单证据，本次不会创建。
             </span>
             {data.mappingConflictCount > 0 ? (
               <Alert
@@ -186,7 +206,7 @@ export function ProductCatalogPanel() {
               <Alert
                 type="success"
                 showIcon
-                message="所有可判定的历史证据都能唯一归属，没有需要人工处理的 SKU 冲突。"
+                message="范围内可判定的工单证据都能唯一归属，没有需要人工处理的 SKU 冲突。"
               />
             )}
             <Typography.Text type="secondary">
@@ -200,7 +220,7 @@ export function ProductCatalogPanel() {
         onOk: async () => {
           setBootstrapApplying(true)
           try {
-            const result = await applyAdminTemplateProductBootstrap()
+            const result = await applyAdminTemplateProductBootstrap(backfillPayload())
             const applied = result.data
             const rebuildText =
               applied.deletedImportedMappingCount > 0
@@ -232,7 +252,7 @@ export function ProductCatalogPanel() {
   async function backfillWorkOrderProducts() {
     setBackfillingWorkOrderSkus(true)
     try {
-      const response = await backfillAdminWorkOrderProductSkus()
+      const response = await backfillAdminWorkOrderProductSkus(backfillPayload())
       const result = response.data
       const factsText = result.factsRebuild
         ? `；已重算 ${result.factsRebuild.fromDate} ~ ${result.factsRebuild.toDate} 的销售事实`
@@ -259,7 +279,7 @@ export function ProductCatalogPanel() {
   async function normalizeManualProductCatalog() {
     setNormalizingManualProducts(true)
     try {
-      const preview = await normalizeAdminManualProducts({ dryRun: true })
+      const preview = await normalizeAdminManualProducts({ dryRun: true, ...backfillPayload() })
       const data = preview.data
       if (data.distinctSkuCount === 0) {
         message.success('没有待归一的人工订单项')
@@ -283,7 +303,7 @@ export function ProductCatalogPanel() {
         okText: '开始归一',
         cancelText: '取消',
         onOk: async () => {
-          const response = await normalizeAdminManualProducts({})
+          const response = await normalizeAdminManualProducts(backfillPayload())
           const result = response.data
           message.success(
             `已新建 ${result.createdProductCount} 个商品、归一 ${result.updatedItemCount} 个订单项${
@@ -714,6 +734,17 @@ export function ProductCatalogPanel() {
         extra={
           canConfig ? (
             <Space size={6} wrap>
+              {!productSourceFilter ||
+              productSourceFilter === 'work_order' ||
+              productSourceFilter === 'manual' ? (
+                <AdminRangePicker
+                  value={backfillRange}
+                  onChange={(value) => {
+                    if (value?.[0] && value?.[1]) setBackfillRange([value[0], value[1]])
+                  }}
+                  allowClear={false}
+                />
+              ) : null}
               {productSourceFilter === 'affiliate_dash' ? (
                 <>
                   <Button
diff --git a/apps/frontend/src/services/admin/cost-center.ts b/apps/frontend/src/services/admin/cost-center.ts
index 4c97e424..17b8c0ac 100644
--- a/apps/frontend/src/services/admin/cost-center.ts
+++ b/apps/frontend/src/services/admin/cost-center.ts
@@ -41,16 +41,23 @@ export function fetchAdminCostCenterOptions() {
   return apiGet<CostCenterOptions>('/api/v1/admin/cost-center/options')
 }
 
-export function previewAdminTemplateProductBootstrap() {
+export function previewAdminTemplateProductBootstrap(payload?: {
+  dateFrom?: string
+  dateTo?: string
+}) {
   return apiGet<TemplateProductBootstrapPreview>(
     '/api/v1/admin/cost-center/template-bootstrap/preview',
+    payload,
   )
 }
 
-export function applyAdminTemplateProductBootstrap() {
+export function applyAdminTemplateProductBootstrap(payload?: {
+  dateFrom?: string
+  dateTo?: string
+}) {
   return apiPost<TemplateProductBootstrapResult>(
     '/api/v1/admin/cost-center/template-bootstrap/apply',
-    { repair: true },
+    { repair: true, ...payload },
     { timeout: 300_000 },
   )
 }
@@ -66,7 +73,10 @@ export function syncAdminWorkOrderTemplateCostVersions() {
   }>('/api/v1/admin/cost-center/work-order-template-costs/sync')
 }
 
-export function backfillAdminWorkOrderProductSkus() {
+export function backfillAdminWorkOrderProductSkus(payload?: {
+  dateFrom?: string
+  dateTo?: string
+}) {
   return apiPost<{
     updatedCount: number
     skippedCount: number
@@ -84,7 +94,7 @@ export function backfillAdminWorkOrderProductSkus() {
       insertedCount: number
       batchCount: number
     } | null
-  }>('/api/v1/admin/cost-center/work-order-products/backfill')
+  }>('/api/v1/admin/cost-center/work-order-products/backfill', payload || {})
 }
 
 export function fetchAdminProductCatalog(params?: Record<string, unknown>) {
diff --git a/apps/frontend/src/types/admin/cost-center.ts b/apps/frontend/src/types/admin/cost-center.ts
index b7291c74..0bf63a51 100644
--- a/apps/frontend/src/types/admin/cost-center.ts
+++ b/apps/frontend/src/types/admin/cost-center.ts
@@ -173,6 +173,8 @@ export interface CostCenterOptions {
 }
 
 export interface TemplateProductBootstrapPreview {
+  dateFrom: string
+  dateTo: string
   templateCount: number
   productExistingCount: number
   productCreateCount: number
diff --git a/docs/成本中心与履约模型.md b/docs/成本中心与履约模型.md
index 64969ab0..da524550 100644
--- a/docs/成本中心与履约模型.md
+++ b/docs/成本中心与履约模型.md
@@ -170,14 +170,14 @@ normalized_sku_series   -- 剥离数量并归一同义字后的名称系列
 
 662 个接单模板不允许逐个手工建商品。后台「从接单模板初始化」按以下规则批量生成：
 
-1. **每个启用模板生成 1 个标准商品**，内部编码 `tpl:<rule_key>`；暂无历史工单的模板也先建商品。
-2. **历史工单直接命中模板**，以 `work_orders.product_rule_id` 作为映射的第一手证据，不只看原始 `sku_code`。
+1. **只处理时间范围内有工单证据的启用模板**，内部编码 `tpl:<rule_key>`；默认最近 30 天，可在页面日期筛选里调整。范围外、暂无工单的模板不再先建商品，避免很早以前的模板 SKU 重新污染目录。
+2. **范围内的工单直接命中模板**，以 `work_orders.product_rule_id` 作为映射的第一手证据，不只看原始 `sku_code`。
 3. 同一 `provider + shop_id + sku_code` 只命中一个模板时，生成 `sku_code` 精确映射。
 4. 编码被多个模板复用时，继续用"编码 + 归一名称系列"和"编码 + 精确名称"消歧；只有唯一归属才生成映射。
 5. 同一编码 + 同一名称仍命中多个模板时，**不选最新、不按次数猜**；跳过并列入冲突清单。
 6. 来源 + 店铺内名称系列唯一时，额外生成 `sku_name_series` 兜底，永远排在编码类映射之后。
 7. 数量系列（1个/2个/5个/10个，秘钥/密钥等等价写法）归为同一标准商品；数量写入 `normalized_quantity`，**不能把"5个"再写成 `quantity_multiplier=5`**，否则会重复乘算。
-8. 重跑初始化时只清理 `source='import'` 且备注为"接单模板 … 自动初始化"的映射，并重置由这些映射带出的订单项 `canonical_product_id`；人工映射、成本版本、快照和真实订单/工单不删除。
+8. 重跑初始化只清理**所选时间范围内**由 `source='import'`、备注为"接单模板 … 自动初始化"的映射带出的订单项 `canonical_product_id`，并删除范围内使用到的导入映射；范围外的人工映射、成本版本、快照和真实订单/工单不删除。
 
 本地验证结果（2026-10-18）：启用模板 662 个；分层映射 4,426 条（编码精确 2,302、编码 + 精确名称 440、编码 + 名称系列 160、名称系列兜底 1,524）；可唯一归一 86,533 个有证据订单项，另有 25,918 个订单项属于 32 组真实冲突，保持未映射。
 
diff --git a/docs/财务上线初始化与验收-2026-10-26.md b/docs/财务上线初始化与验收-2026-10-26.md
index e0f9950b..f6cd2cfb 100644
--- a/docs/财务上线初始化与验收-2026-10-26.md
+++ b/docs/财务上线初始化与验收-2026-10-26.md
@@ -75,6 +75,17 @@ JOIN admin_users au ON au.id = pca.owner_admin_user_id
 ORDER BY pca.platform_key, au.username;
 ```
 
+### 2.5 商品初始化/回填只处理最近 30 天
+
+入口：商品与成本 → 标准商品。接单平台/人工客服 Tab 顶部有日期范围，默认最近 30 天：
+
+- 「从接单模板初始化」只使用范围内工单证据；范围外模板不再先建商品；
+- 「按工单回填商品」只回填范围内订单项；
+- 「归一人工商品」只归一范围内订单项；
+- 自动发货的同步/回填固定最近 30 天。
+
+原因：更早历史 SKU 噪声大，且人工历史成本本身不可追，重新带出会污染渠道映射和商品目录。需要调整时在页面改日期范围，不要默认全量。
+
 ### 3. 扫描并配置人工 SKU
 
 入口：商品与成本 → 人工 SKU 配置。