diff --git a/service/src/main/java/cn/qihangerp/service/external/pdd/OGoodsPddMappingPersistence.java b/service/src/main/java/cn/qihangerp/service/external/pdd/OGoodsPddMappingPersistence.java
index 5773c851..f3438473 100644
--- a/service/src/main/java/cn/qihangerp/service/external/pdd/OGoodsPddMappingPersistence.java
+++ b/service/src/main/java/cn/qihangerp/service/external/pdd/OGoodsPddMappingPersistence.java
@@ -3,12 +3,9 @@ package cn.qihangerp.service.external.pdd;
 import cn.qihangerp.model.entity.OGoods;
 import cn.qihangerp.model.entity.OGoodsSku;
 import cn.qihangerp.model.request.ExternalGoodsUpsertRequest;
-import cn.qihangerp.model.request.ExternalPddGoodsDetailRequest;
 import cn.qihangerp.model.vo.ExternalGoodsUpsertResultVo;
-import cn.qihangerp.model.vo.ExternalPddGoodsDetailResultVo;
 import cn.qihangerp.module.service.OGoodsService;
 import cn.qihangerp.module.service.OGoodsSkuService;
-import cn.qihangerp.service.external.ExternalPddGoodsDetailAppService;
 import com.alibaba.fastjson2.JSON;
 import com.alibaba.fastjson2.JSONObject;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
@@ -27,8 +24,9 @@ import java.util.Map;
  * 各渠道在 {@code o_goods}/{@code o_goods_sku}.{@code canonicalExt} 使用<strong>独立键名</strong>（拼多多为 {@value #CANONICAL_PDD_GOODS_ID}、{@value #CANONICAL_PDD_SKU_ID}），
  * 未来京东/天猫可并行增加 {@code jdSkuId} 等，改库存接口按平台从本库解析后再调 POP。</p>
  *
- * <p>拼多多：{@code pdd.goods.add} 响应可解析 SKU 映射；{@code pdd.goods.information.update} 往往不带 {@code sku_list}，
- * 因此在 upsert 成功后若仍有 SKU 未写入 {@value #CANONICAL_PDD_SKU_ID}，将自动补调 {@code pdd.goods.detail.get} 回填。</p>
+ * <p>拼多多：仅根据 {@code pdd.goods.add} 成功响应中的 {@code sku_list} 回填 {@value #CANONICAL_PDD_SKU_ID}；<strong>不在本服务内</strong>调用
+ * {@code pdd.goods.detail.get}。{@code pdd.goods.information.update} 若未带 {@code sku_list}，则 {@code pddSkuId} 须由主数据在适当时机
+ * 调 {@code POST /external/pdd/goods/detail} 后自行落库或后续扩展同步接口写回 ERP（当前 detail 接口仅返回 JSON 给调用方）。</p>
  */
 @Slf4j
 @Component
@@ -40,12 +38,12 @@ public class OGoodsPddMappingPersistence {
 
     private final OGoodsService goodsService;
     private final OGoodsSkuService skuService;
-    private final ExternalPddGoodsDetailAppService externalPddGoodsDetailAppService;
 
     /**
      * 在 upsert 拼多多链路成功（{@link ExternalGoodsUpsertResultVo#getPddPublishSuccess()}==true）后调用。
+     * <p>只落 {@code pddGoodsId}，以及 {@code GOODS_ADD} 响应片段中能解析到的 SKU 映射；不发起 {@code detail.get}。</p>
      *
-     * @param req 用于携带 {@code pddPopAuth}，在需补拉 {@code pdd.goods.detail.get} 时使用；可为 {@code null}（则无法补全 SKU 映射）
+     * @param req 保留入参供调用方兼容；本方法不再使用 {@code pddPopAuth} 拉 detail
      */
     public void persistAfterPddPublishSuccess(Long erpGoodsId, ExternalGoodsUpsertRequest req,
                                               ExternalGoodsUpsertResultVo vo) {
@@ -75,38 +73,9 @@ public class OGoodsPddMappingPersistence {
             log.info("[PDD] persisted pddGoodsId + sku from GOODS_ADD snippet erpGoodsId={} lane={} skuRowsUpdated={}",
                     erpGoodsId, lane, fromAdd);
         } else {
-            log.info("[PDD] persisted pddGoodsId on o_goods (no GOODS_ADD sku_list) erpGoodsId={} lane={}",
+            log.info("[PDD] persisted pddGoodsId on o_goods (no GOODS_ADD sku_list; no ERP-side detail.get) erpGoodsId={} lane={}",
                     erpGoodsId, lane);
         }
-
-        if (!anySkuMissingPddSkuId(erpGoodsId)) {
-            return;
-        }
-        if (req == null || req.getPddPopAuth() == null) {
-            log.warn("[PDD] skip detail.get backfill: missing pddPopAuth erpGoodsId={} lane={}",
-                    erpGoodsId, lane);
-            return;
-        }
-
-        ExternalPddGoodsDetailRequest dreq = new ExternalPddGoodsDetailRequest();
-        dreq.setPddGoodsId(pddGoodsId);
-        dreq.setPddPopAuth(req.getPddPopAuth());
-        ExternalPddGoodsDetailResultVo detailVo = externalPddGoodsDetailAppService.fetchGoodsDetail(dreq);
-        if (!Boolean.TRUE.equals(detailVo.getPopBizSuccess()) || !StringUtils.hasText(detailVo.getPopResponseBody())) {
-            log.warn("[PDD] detail.get backfill failed erpGoodsId={} pddGoodsId={} msg={}",
-                    erpGoodsId, pddGoodsId, detailVo.getMessage());
-            return;
-        }
-        Map<String, Long> fromDetail =
-                PddOpenApiSupport.parseOuterKeyToPddSkuIdFromGoodsDetailGetResponse(detailVo.getPopResponseBody());
-        int fromDetailCount = applyPddSkuMappings(erpGoodsId, fromDetail);
-        if (fromDetailCount > 0) {
-            log.info("[PDD] detail.get backfill applied erpGoodsId={} pddGoodsId={} skuRowsUpdated={}",
-                    erpGoodsId, pddGoodsId, fromDetailCount);
-        } else if (anySkuMissingPddSkuId(erpGoodsId)) {
-            log.warn("[PDD] detail.get ok but no sku_id matched outer_erp_sku_id erpGoodsId={} pddGoodsId={}",
-                    erpGoodsId, pddGoodsId);
-        }
     }
 
     /**
@@ -140,39 +109,6 @@ public class OGoodsPddMappingPersistence {
         return updated;
     }
 
-    private boolean anySkuMissingPddSkuId(Long erpGoodsId) {
-        List<OGoodsSku> rows = skuService.list(new LambdaQueryWrapper<OGoodsSku>()
-                .eq(OGoodsSku::getGoodsId, erpGoodsId));
-        if (rows == null || rows.isEmpty()) {
-            return false;
-        }
-        for (OGoodsSku row : rows) {
-            if (row == null || !StringUtils.hasText(row.getOuterErpSkuId())) {
-                continue;
-            }
-            Long v = readCanonicalLong(row.getCanonicalExt(), CANONICAL_PDD_SKU_ID);
-            if (v == null || v <= 0) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    private static Long readCanonicalLong(String json, String key) {
-        if (!StringUtils.hasText(json) || !StringUtils.hasText(key)) {
-            return null;
-        }
-        try {
-            JSONObject o = JSON.parseObject(json);
-            if (o == null || !o.containsKey(key)) {
-                return null;
-            }
-            return o.getLong(key);
-        } catch (Exception e) {
-            return null;
-        }
-    }
-
     private static String mergeJsonLongField(String existingJson, String field, long value) {
         JSONObject o;
         if (StringUtils.hasText(existingJson)) {
diff --git a/service/src/main/java/cn/qihangerp/service/external/pdd/PddOpenApiSupport.java b/service/src/main/java/cn/qihangerp/service/external/pdd/PddOpenApiSupport.java
index 19f1d1e0..b61595cc 100644
--- a/service/src/main/java/cn/qihangerp/service/external/pdd/PddOpenApiSupport.java
+++ b/service/src/main/java/cn/qihangerp/service/external/pdd/PddOpenApiSupport.java
@@ -199,7 +199,7 @@ public final class PddOpenApiSupport {
     /**
      * 从 {@code pdd.goods.detail.get} 成功响应中解析 {@code goods_detail_get_response.sku_list[]}，
      * 与 {@link #parseOuterKeyToPddSkuIdFromGoodsAddResponse} 对齐：按 {@code out_sku_sn}/{@code outer_id}/{@code out_sku_id} 映射拼多多 {@code sku_id}。
-     * <p>用于 {@code INFORMATION_UPDATE} 等未返回 {@code goods_add_response.sku_list} 的发品路径之后，在 ERP 本地补全 {@code o_goods_sku.canonicalExt.pddSkuId}。</p>
+     * <p>供调用方（如主数据在拉 {@code /external/pdd/goods/detail} 后）解析 SKU 映射；ERP-Open 发品/更新成功后<strong>不再</strong>自动调 detail 写 {@code o_goods_sku}。</p>
      */
     public static Map<String, Long> parseOuterKeyToPddSkuIdFromGoodsDetailGetResponse(String raw) {
         Map<String, Long> out = new LinkedHashMap<>();