diff --git a/backend-node/src/controllers/outboundController.ts b/backend-node/src/controllers/outboundController.ts
index b4b942a0..7e77974c 100644
--- a/backend-node/src/controllers/outboundController.ts
+++ b/backend-node/src/controllers/outboundController.ts
@@ -477,8 +477,21 @@ export async function getItems(req: AuthenticatedRequest, res: Response) {
 export async function generateNumber(req: AuthenticatedRequest, res: Response) {
   try {
     const companyCode = req.user!.companyCode;
-    const pool = getPool();
+    const ruleId = (req.query.ruleId as string) || (req.query.rule_id as string);
 
+    // 1순위: POP 화면설정에서 선택한 채번규칙 사용
+    if (ruleId && ruleId !== "__none__") {
+      try {
+        const { numberingRuleService } = await import("../services/numberingRuleService");
+        const newNumber = await numberingRuleService.allocateCode(ruleId, companyCode);
+        return res.json({ success: true, data: newNumber });
+      } catch (e: any) {
+        logger.warn("선택한 채번규칙 사용 실패, 기본 채번으로 폴백", { ruleId, error: e.message });
+      }
+    }
+
+    // 2순위: 기본 하드코딩 채번 (OUT-YYYY-XXXX)
+    const pool = getPool();
     const today = new Date();
     const yyyy = today.getFullYear();
     const prefix = `OUT-${yyyy}-`;
diff --git a/backend-node/src/controllers/receivingController.ts b/backend-node/src/controllers/receivingController.ts
index 8f9c9863..fb358a06 100644
--- a/backend-node/src/controllers/receivingController.ts
+++ b/backend-node/src/controllers/receivingController.ts
@@ -881,8 +881,22 @@ export async function getItems(req: AuthenticatedRequest, res: Response) {
 export async function generateNumber(req: AuthenticatedRequest, res: Response) {
   try {
     const companyCode = req.user!.companyCode;
-    const pool = getPool();
+    const ruleId = (req.query.ruleId as string) || (req.query.rule_id as string);
 
+    // 1순위: POP 화면설정에서 선택한 채번규칙 사용
+    if (ruleId && ruleId !== "__none__") {
+      try {
+        const { numberingRuleService } = await import("../services/numberingRuleService");
+        const newNumber = await numberingRuleService.allocateCode(ruleId, companyCode);
+        return res.json({ success: true, data: newNumber });
+      } catch (e: any) {
+        logger.warn("선택한 채번규칙 사용 실패, 기본 채번으로 폴백", { ruleId, error: e.message });
+        // 폴백
+      }
+    }
+
+    // 2순위: 기본 하드코딩 채번 (RCV-YYYY-XXXX)
+    const pool = getPool();
     const today = new Date();
     const yyyy = today.getFullYear();
     const prefix = `RCV-${yyyy}-`;
diff --git a/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx b/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx
index 960794b4..06d142c2 100644
--- a/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx
+++ b/frontend/components/pop/hardcoded/inbound/InboundCartPage.tsx
@@ -310,9 +310,15 @@ export function InboundCartPage() {
 
     try {
       // 확정 시점에 채번 (동시접속 충돌 방지)
+      // POP 화면설정에서 선택한 채번규칙 사용 (없으면 기본)
       let finalNumber = "";
       try {
-        const numRes = await apiClient.get("/receiving/generate-number");
+        const settingsRes: any = await apiClient.get("/screen-management/screens/6527/layout-pop").catch(() => null);
+        const ruleId = settingsRes?.data?.data?.settings?.popConfig?.inbound?.numberingRuleId;
+        const url = ruleId && ruleId !== "__none__"
+          ? `/receiving/generate-number?ruleId=${encodeURIComponent(ruleId)}`
+          : "/receiving/generate-number";
+        const numRes = await apiClient.get(url);
         if (numRes.data?.success && numRes.data?.data) {
           finalNumber = numRes.data.data;
           setInboundNumber(finalNumber);
diff --git a/frontend/components/pop/hardcoded/outbound/OutboundCartPage.tsx b/frontend/components/pop/hardcoded/outbound/OutboundCartPage.tsx
index 918e0510..05fd095f 100644
--- a/frontend/components/pop/hardcoded/outbound/OutboundCartPage.tsx
+++ b/frontend/components/pop/hardcoded/outbound/OutboundCartPage.tsx
@@ -305,9 +305,15 @@ export function OutboundCartPage() {
 
     try {
       // Generate outbound number at confirm time
+      // POP 화면설정에서 선택한 채번규칙 사용 (없으면 기본)
       let finalNumber = "";
       try {
-        const numRes = await apiClient.get("/outbound/generate-number");
+        const settingsRes: any = await apiClient.get("/screen-management/screens/5/layout-pop").catch(() => null);
+        const ruleId = settingsRes?.data?.data?.settings?.popConfig?.outbound?.numberingRuleId;
+        const url = ruleId && ruleId !== "__none__"
+          ? `/outbound/generate-number?ruleId=${encodeURIComponent(ruleId)}`
+          : "/outbound/generate-number";
+        const numRes = await apiClient.get(url);
         if (numRes.data?.success && numRes.data?.data) {
           finalNumber = numRes.data.data;
           setOutboundNumber(finalNumber);