if have open item round, select new round by location if have overlap lcoation will tell those item will skip

src/app/api/stockTake/actions.ts

@@ -428,6 +428,27 @@ export type StockTakeCreateItemOption = {
 };
 
 /** 來源：All / PP / PF / other（與庫存批次現況報告一致） */
+/** 建立區域輪：與 open 貨品輪重疊、本輪會略過的貨品 */
+export type SectionCreateItemOverlap = {
+    itemId: number;
+    itemCode: string | null;
+    itemName: string | null;
+    stockTakeSection: string | null;
+    stockTakeRoundId: number;
+    stockTakeRoundName: string | null;
+};
+
+export const getSectionCreateItemOverlaps = async (sections: string[]) => {
+    const list = sections.map((s) => s.trim()).filter((s) => s.length > 0);
+    if (list.length === 0) return [] as SectionCreateItemOverlap[];
+    const params = new URLSearchParams();
+    list.forEach((s) => params.append("sections", s));
+    return serverFetchJson<SectionCreateItemOverlap[]>(
+        `${BASE_API_URL}/stockTakeRecord/sectionCreateItemOverlaps?${params.toString()}`,
+        { method: "GET" },
+    );
+};
+
 export const getAvailableLotsForStockTakeCreate = async (
     itemIds: number[],
     lotOrigin?: string | null,

src/components/StockTakeManagement/PickerCardList.tsx

@@ -35,6 +35,7 @@ import {
   Accordion,
   AccordionSummary,
   AccordionDetails,
+  Alert,
 } from "@mui/material";
 import SearchIcon from "@mui/icons-material/Search";
 import ExpandMoreIcon from "@mui/icons-material/ExpandMore";
@@ -53,7 +54,9 @@ import {
   getLatestStockTakeRoundMeta,
   getBusyStockTakeSections,
   getAvailableLotsForStockTakeCreate,
+  getSectionCreateItemOverlaps,
   searchItemsForStockTakeCreate,
+  type SectionCreateItemOverlap,
   type StockTakeCreateLotOption,
 } from "@/app/api/stockTake/actions";
 import { fetchStockTakeSections } from "@/app/api/warehouse/actions";
@@ -357,6 +360,8 @@ const PickerCardList: React.FC<PickerCardListProps> = ({
   const [createDialogSelectedLotLineIds, setCreateDialogSelectedLotLineIds] = useState<number[]>([]);
   const [createDialogLotsLoading, setCreateDialogLotsLoading] = useState(false);
   const [createDialogItemSearching, setCreateDialogItemSearching] = useState(false);
+  const [sectionItemOverlaps, setSectionItemOverlaps] = useState<SectionCreateItemOverlap[]>([]);
+  const [sectionOverlapsLoading, setSectionOverlapsLoading] = useState(false);
   const [sectionsLoading, setSectionsLoading] = useState(false);
   const [stockTakeSectionRows, setStockTakeSectionRows] = useState<StockTakeSectionInfo[]>([]);
   const createStockTakeInFlightRef = useRef(false);
@@ -1197,6 +1202,39 @@ const PickerCardList: React.FC<PickerCardListProps> = ({
     };
   }, [openConfirmDialog, createMode, createDialogSelectedItems, createDialogLotOrigin]);
 
+  useEffect(() => {
+    if (!openConfirmDialog || createMode !== "section") {
+      setSectionItemOverlaps([]);
+      setSectionOverlapsLoading(false);
+      return;
+    }
+    const sections = createDialogSelectedSections.map((s) => s.trim()).filter((s) => s.length > 0);
+    if (sections.length === 0) {
+      setSectionItemOverlaps([]);
+      setSectionOverlapsLoading(false);
+      return;
+    }
+    let cancelled = false;
+    const timer = window.setTimeout(() => {
+      setSectionOverlapsLoading(true);
+      getSectionCreateItemOverlaps(sections)
+        .then((rows) => {
+          if (!cancelled) setSectionItemOverlaps(Array.isArray(rows) ? rows : []);
+        })
+        .catch((e) => {
+          console.error("Failed to load section create item overlaps:", e);
+          if (!cancelled) setSectionItemOverlaps([]);
+        })
+        .finally(() => {
+          if (!cancelled) setSectionOverlapsLoading(false);
+        });
+    }, 250);
+    return () => {
+      cancelled = true;
+      window.clearTimeout(timer);
+    };
+  }, [openConfirmDialog, createMode, createDialogSelectedSections]);
+
   useEffect(() => {
     setSectionsLoading(true);
     fetchStockTakeSections()
@@ -1318,8 +1356,26 @@ const PickerCardList: React.FC<PickerCardListProps> = ({
     setCreateDialogSelectedItems([]);
     setCreateDialogLotOptions([]);
     setCreateDialogSelectedLotLineIds([]);
+    setSectionItemOverlaps([]);
+    setSectionOverlapsLoading(false);
     onCreateDialogClose?.();
   };
+
+  const formatSectionItemOverlapLine = useCallback(
+    (row: SectionCreateItemOverlap) => {
+      const itemLabel = [row.itemCode, row.itemName].filter(Boolean).join(" ").trim() || `#${row.itemId}`;
+      const roundName = row.stockTakeRoundName?.trim()
+        ? `「${row.stockTakeRoundName.trim()}」`
+        : "";
+      return t("Section create item overlap line", {
+        item: itemLabel,
+        round: row.stockTakeRoundId,
+        roundName,
+        section: row.stockTakeSection || "-",
+      });
+    },
+    [t],
+  );
   return (
     <Box>
       {!hideSectionList && (
@@ -2010,6 +2066,30 @@ const PickerCardList: React.FC<PickerCardListProps> = ({
                 </Typography>{" "}
                 {createMode === "item" ? t("lots unit") : t("sections unit")}
               </Typography>
+              {createMode === "section" && sectionOverlapsLoading ? (
+                <Typography variant="caption" color="text.secondary">
+                  …
+                </Typography>
+              ) : null}
+              {createMode === "section" && sectionItemOverlaps.length > 0 ? (
+                <Alert severity="warning" sx={{ py: 0.5, alignItems: "flex-start" }}>
+                  <Typography variant="caption" fontWeight={700} display="block" sx={{ mb: 0.5 }}>
+                    {t("Section create item overlap title")}
+                  </Typography>
+                  <Box component="ul" sx={{ m: 0, pl: 2, maxHeight: 140, overflowY: "auto" }}>
+                    {sectionItemOverlaps.map((row) => (
+                      <Typography
+                        component="li"
+                        variant="caption"
+                        key={`${row.itemId}-${row.stockTakeRoundId}-${row.stockTakeSection}`}
+                        sx={{ display: "list-item" }}
+                      >
+                        {formatSectionItemOverlapLine(row)}
+                      </Typography>
+                    ))}
+                  </Box>
+                </Alert>
+              ) : null}
             </Box>
 
             {/* 右側：區域卡片網格 */}
@@ -2495,6 +2575,25 @@ const PickerCardList: React.FC<PickerCardListProps> = ({
               </Typography>{" "}
               {createMode === "item" ? t("lots unit") : t("sections unit")}
             </Typography>
+            {createMode === "section" && sectionItemOverlaps.length > 0 ? (
+              <Alert severity="warning" sx={{ py: 0.75 }}>
+                <Typography variant="body2" fontWeight={700} sx={{ mb: 0.5 }}>
+                  {t("Section create item overlap title")}
+                </Typography>
+                <Box component="ul" sx={{ m: 0, pl: 2, maxHeight: 160, overflowY: "auto" }}>
+                  {sectionItemOverlaps.map((row) => (
+                    <Typography
+                      component="li"
+                      variant="body2"
+                      key={`confirm-${row.itemId}-${row.stockTakeRoundId}-${row.stockTakeSection}`}
+                      sx={{ display: "list-item", mb: 0.5 }}
+                    >
+                      {formatSectionItemOverlapLine(row)}
+                    </Typography>
+                  ))}
+                </Box>
+              </Alert>
+            ) : null}
           </Stack>
           <Box
             sx={{

src/i18n/en/stockTake.json

@@ -57,6 +57,8 @@
   "Confirm": "Confirm",
   "Confirm batch save approver": "Confirm batch save",
   "Confirm create stock take": "Confirm create stock take",
+  "Section create item overlap title": "These items are already in an open item stock-take round; this round will skip them",
+  "Section create item overlap line": "Item {{item}} is in round #{{round}}{{roundName}}; this round will not include it (section {{section}})",
   "Control Time": "Control Time",
   "Create by item": "By item",
   "Create by section": "By section",

src/i18n/zh/stockTake.json

@@ -178,6 +178,8 @@
   "Search section code or name": "搜索代碼或名稱 (例如 ST-042 或 飲品)",
   "No sections match search": "沒有符合搜索條件的區域",
   "Confirm create stock take": "確認建立盤點",
+  "Section create item overlap title": "以下貨品已在進行中的貨品盤點輪，本輪會略過（不會盤到）",
+  "Section create item overlap line": "貨品 {{item}} 正由輪次 #{{round}}{{roundName}} 盤點中，本輪不會包含此貨品（區域 {{section}}）",
   "Not filled": "（未填寫）",
   "Warehouse missing stock take section drawer hint": "以下倉庫位置尚未設定盤點區域（ST-xxx），無法納入盤點區域選擇。請點各筆「前往此倉庫設定」補上。",
   "Warehouse missing stock take section showing": "顯示前 {{shown}} 筆，共 {{count}} 筆",