diff --git a/src/main/java/com/wb/domainserver/acidlivy/tasklet/AciDlivyTasklet.java b/src/main/java/com/wb/domainserver/acidlivy/tasklet/AciDlivyTasklet.java
index 113eb37..e89afac 100644
--- a/src/main/java/com/wb/domainserver/acidlivy/tasklet/AciDlivyTasklet.java
+++ b/src/main/java/com/wb/domainserver/acidlivy/tasklet/AciDlivyTasklet.java
@@ -240,22 +240,28 @@ public class AciDlivyTasklet implements Tasklet {
         }
         log.debug("[AciDlivyBatch] 주문 상품 옵션 수={} (ORDR_DLVY_INNB={})", itemList.size(), orderVO.getOrdrDlvyInnb());
 
-        // ② DLIVY_INNB = ORDR_DLVY_INNB (gc_order_shipping.ORDR_DLVY_INNB → gc_goods_export.DLIVY_INNB)
-        orderVO.setDlivyInnb(orderVO.getOrdrDlvyInnb());
-
-        // ③ dlivyCdNb 생성 (DLIVY_INNB 확정 후, INSERT 전)
-        String dlivyCdNb = "D" + new SimpleDateFormat("yyMMddHH").format(new Date()) + orderVO.getDlivyInnb();
-        orderVO.setDlivyCdNb(dlivyCdNb);
-
-        // ④ gc_goods_export INSERT/UPDATE (dlivyCdNb 직접 포함)
+        // ② gc_goods_export INSERT/UPDATE
         int exportCnt = aciDlivyMapper.selectGoodsExportCount(orderVO);
+        boolean newExport = exportCnt == 0;
         if (exportCnt > 0) {
+            String dlivyInnb = aciDlivyMapper.selectGoodsExportDlivyInnb(orderVO);
+            if (dlivyInnb == null || dlivyInnb.isBlank()) {
+                throw new IllegalStateException("기존 출고번호 조회 실패 - ORDR_INNB=" + orderVO.getOrdrInnb()
+                        + ", ORDR_DLVY_INNB=" + orderVO.getOrdrDlvyInnb());
+            }
+            orderVO.setDlivyInnb(dlivyInnb);
             aciDlivyMapper.updateGoodsExport(orderVO);
         } else {
             aciDlivyMapper.insertGoodsExport(orderVO);
         }
 
-        // ⑤ 주문 상품 옵션별 처리 (gc_goods_export_item, gc_order_item_option)
+        String dlivyCdNb = "D" + new SimpleDateFormat("yyMMddHH").format(new Date()) + orderVO.getDlivyInnb();
+        orderVO.setDlivyCdNb(dlivyCdNb);
+        if (newExport) {
+            aciDlivyMapper.updateGoodsExportDlivyCdNb(orderVO);
+        }
+
+        // ③ 주문 상품 옵션별 처리 (gc_goods_export_item, gc_order_item_option)
         for (DataMap itemMap : itemList) {
             Object qyObj = itemMap.get("qy");
             if (qyObj == null) continue;
diff --git a/src/main/java/com/wb/domainserver/acidlivy/vo/AciDlivyOrderVO.java b/src/main/java/com/wb/domainserver/acidlivy/vo/AciDlivyOrderVO.java
index 192c7db..d2ebfb0 100644
--- a/src/main/java/com/wb/domainserver/acidlivy/vo/AciDlivyOrderVO.java
+++ b/src/main/java/com/wb/domainserver/acidlivy/vo/AciDlivyOrderVO.java
@@ -20,6 +20,6 @@ public class AciDlivyOrderVO {
     private String blno;         // ACI 운송장번호 (BLNO)
     private String hdrycpnCd;    // 택배사코드 (고정값: code22)
     private String dlivySttusCd; // 출고상태코드 (고정값: 55)
-    private String dlivyInnb;    // 출고고유번호 (gc_goods_export.DLIVY_INNB = ordrDlvyInnb)
-    private String dlivyCdNb;    // 출고코드번호 ('D'+yyMMddHH+dlivyInnb 형식, INSERT 전 Java에서 생성)
+    private String dlivyInnb;    // 출고고유번호 (gc_goods_export.DLIVY_INNB)
+    private String dlivyCdNb;    // 출고코드번호 ('D'+yyMMddHH+dlivyInnb 형식)
 }
diff --git a/src/main/java/com/wb/domainserver/mapper/gcone/AciDlivyMapper.java b/src/main/java/com/wb/domainserver/mapper/gcone/AciDlivyMapper.java
index d373619..35d614b 100644
--- a/src/main/java/com/wb/domainserver/mapper/gcone/AciDlivyMapper.java
+++ b/src/main/java/com/wb/domainserver/mapper/gcone/AciDlivyMapper.java
@@ -21,13 +21,16 @@ public interface AciDlivyMapper {
     /** gc_goods_export 존재 여부 */
     int selectGoodsExportCount(AciDlivyOrderVO vo);
 
+    /** 기존 gc_goods_export 출고고유번호 조회 */
+    String selectGoodsExportDlivyInnb(AciDlivyOrderVO vo);
+
     /** gc_goods_export INSERT */
     int insertGoodsExport(AciDlivyOrderVO vo);
 
     /** gc_goods_export UPDATE (기존 레코드 있음) */
     int updateGoodsExport(AciDlivyOrderVO vo);
 
-    /** gc_goods_export DLIVY_CD_NB UPDATE (미사용 - dlivyCdNb는 INSERT 전 Java에서 생성) */
+    /** gc_goods_export DLIVY_CD_NB UPDATE (신규 출고 생성키 수신 후 호출) */
     int updateGoodsExportDlivyCdNb(AciDlivyOrderVO vo);
 
     /** gc_goods_export_item 존재 여부 */
diff --git a/src/main/resources/mybatis/xml/mapper/gcone/AciDlivyMapper.xml b/src/main/resources/mybatis/xml/mapper/gcone/AciDlivyMapper.xml
index 5a7c51b..2192f5d 100644
--- a/src/main/resources/mybatis/xml/mapper/gcone/AciDlivyMapper.xml
+++ b/src/main/resources/mybatis/xml/mapper/gcone/AciDlivyMapper.xml
@@ -52,22 +52,38 @@
           AND HDRYCPN_CD = #{hdrycpnCd}
         ]]>
     </select>
+    <!-- 기존 gc_goods_export 출고고유번호 조회 -->
+    <select id="selectGoodsExportDlivyInnb"
+            parameterType="com.wb.domainserver.acidlivy.vo.AciDlivyOrderVO"
+            resultType="java.lang.String">
+        <![CDATA[
+        SELECT DLIVY_INNB
+        FROM GC_GOODS_EXPORT
+        WHERE SOPMAL_CD = #{sopmalCd}
+          AND ORDR_INNB = #{ordrInnb}
+          AND ORDR_DLVY_INNB = #{ordrDlvyInnb}
+          AND HDRYCPN_CD = #{hdrycpnCd}
+        LIMIT 1
+        ]]>
+    </select>
+
 
 
     <!-- gc_goods_export INSERT -->
-    <!-- DLIVY_INNB: gc_order_shipping.ORDR_DLVY_INNB 값 사용 (Java에서 dlivyInnb = ordrDlvyInnb 세팅 후 전달) -->
-    <!-- DLIVY_CD_NB: Java에서 생성한 dlivyCdNb 직접 포함 (INSERT 전 생성) -->
+    <!-- DLIVY_INNB: DB AUTO_INCREMENT 생성키 사용 -->
+    <!-- DLIVY_CD_NB: 생성키 수신 후 updateGoodsExportDlivyCdNb에서 설정 -->
     <!-- HDRYCPN_CD: code22 고정, INVCNB: ACI BLNO -->
     <insert id="insertGoodsExport"
-            parameterType="com.wb.domainserver.acidlivy.vo.AciDlivyOrderVO">
+            parameterType="com.wb.domainserver.acidlivy.vo.AciDlivyOrderVO"
+            useGeneratedKeys="true"
+            keyProperty="dlivyInnb"
+            keyColumn="DLIVY_INNB">
 
         <![CDATA[
         INSERT INTO GC_GOODS_EXPORT (
-            DLIVY_INNB,
             SOPMAL_CD,
             ORDR_INNB,
             ORDR_DLVY_INNB,
-            DLIVY_CD_NB,
             DLIVY_STTUS_CD,
             STTUS_UPDT_DT,
             HDRYCPN_CD,
@@ -78,11 +94,9 @@
             REGIST_DT,
             UPDT_DT
         ) VALUES (
-            #{dlivyInnb},
             #{sopmalCd},
             #{ordrInnb},
             #{ordrDlvyInnb},
-            #{dlivyCdNb},
             #{dlivySttusCd},
             SYSDATE(),
             #{hdrycpnCd},
@@ -106,12 +120,12 @@
             DLIVY_CD_NB = #{dlivyCdNb},
             UPDT_DT = SYSDATE()
         WHERE DLIVY_INNB = #{dlivyInnb}
+          AND SOPMAL_CD = #{sopmalCd}
         ]]>
     </update>
 
 
     <!-- gc_goods_export UPDATE (기존 레코드 있음) -->
-    <!-- gc_goods_export UPDATE (기존 레코드 있음, dlivyInnb = ordrDlvyInnb Java 세팅) -->
     <update id="updateGoodsExport"
             parameterType="com.wb.domainserver.acidlivy.vo.AciDlivyOrderVO">