diff --git a/src/main/java/com/ffii/fpsms/modules/report/service/ReportService.kt b/src/main/java/com/ffii/fpsms/modules/report/service/ReportService.kt
index 5d9d980..123a9c0 100644
--- a/src/main/java/com/ffii/fpsms/modules/report/service/ReportService.kt
+++ b/src/main/java/com/ffii/fpsms/modules/report/service/ReportService.kt
@@ -815,6 +815,107 @@ fun searchMaterialStockOutTraceabilityReport(
         return jdbcDao.queryForList(sql, args)
     }
 
+    /**
+     * GRN (Goods Received Note) report: stock-in lines with PO/delivery note, filterable by receipt date range and item code.
+     * Returns rows for Excel export: poCode, deliveryNoteNo, receiptDate, itemCode, itemName, acceptedQty, demandQty, uom, etc.
+     */
+    fun searchGrnReport(
+        receiptDateStart: String?,
+        receiptDateEnd: String?,
+        itemCode: String?
+    ): List<Map<String, Any?>> {
+        val args = mutableMapOf<String, Any>()
+        val receiptDateStartSql = if (!receiptDateStart.isNullOrBlank()) {
+            val formatted = receiptDateStart.replace("/", "-")
+            args["receiptDateStart"] = formatted
+            "AND DATE(sil.receiptDate) >= DATE(:receiptDateStart)"
+        } else ""
+        val receiptDateEndSql = if (!receiptDateEnd.isNullOrBlank()) {
+            val formatted = receiptDateEnd.replace("/", "-")
+            args["receiptDateEnd"] = formatted
+            "AND DATE(sil.receiptDate) <= DATE(:receiptDateEnd)"
+        } else ""
+        val itemCodeSql = buildMultiValueLikeClause(itemCode, "it.code", "itemCode", args)
+
+        val sql = """
+            SELECT
+                po.code AS poCode,
+                CASE
+                    WHEN sil.dnNo = 'DN00000' OR sil.dnNo IS NULL THEN ''
+                    ELSE sil.dnNo
+                END AS deliveryNoteNo,
+                DATE_FORMAT(sil.receiptDate, '%Y-%m-%d') AS receiptDate,
+                COALESCE(it.code, '') AS itemCode,
+                COALESCE(it.name, '') AS itemName,
+                COALESCE(sil.acceptedQty, 0) AS acceptedQty,
+                COALESCE(sil.demandQty, 0) AS demandQty,
+                COALESCE(uc_stock.udfudesc, uc_pol.udfudesc, '') AS uom,
+                COALESCE(uc_pol.udfudesc, '') AS purchaseUomDesc,
+                COALESCE(uc_stock.udfudesc, '') AS stockUomDesc,
+                COALESCE(sil.productLotNo, '') AS productLotNo,
+                DATE_FORMAT(sil.expiryDate, '%Y-%m-%d') AS expiryDate,
+                COALESCE(sp.code, '') AS supplierCode,
+                COALESCE(sp.name, '') AS supplier,
+                COALESCE(sil.status, '') AS status,
+                MAX(grn.m18_record_id) AS grnId
+            FROM stock_in_line sil
+            LEFT JOIN items it ON sil.itemId = it.id
+            LEFT JOIN purchase_order po ON sil.purchaseOrderId = po.id
+            LEFT JOIN shop sp ON po.supplierId = sp.id
+            LEFT JOIN purchase_order_line pol ON sil.purchaseOrderLineId = pol.id
+            LEFT JOIN uom_conversion uc_pol ON pol.uomId = uc_pol.id
+            LEFT JOIN item_uom iu_stock ON it.id = iu_stock.itemId AND iu_stock.stockUnit = true AND iu_stock.deleted = false
+            LEFT JOIN uom_conversion uc_stock ON iu_stock.uomId = uc_stock.id
+            LEFT JOIN m18_goods_receipt_note_log grn
+                   ON grn.stock_in_line_id = sil.id
+            WHERE sil.deleted = false
+            AND sil.receiptDate IS NOT NULL
+            AND sil.purchaseOrderId IS NOT NULL
+            $receiptDateStartSql
+            $receiptDateEndSql
+            $itemCodeSql
+            GROUP BY
+                po.code,
+                deliveryNoteNo,
+                receiptDate,
+                itemCode,
+                itemName,
+                acceptedQty,
+                demandQty,
+                uom,
+                purchaseUomDesc,
+                stockUomDesc,
+                productLotNo,
+                expiryDate,
+                supplierCode,
+                supplier,
+                status
+            ORDER BY sil.receiptDate, po.code, sil.id
+        """.trimIndent()
+        val rows = jdbcDao.queryForList(sql, args)
+        return rows.map { row ->
+            mapOf(
+                "poCode" to row["poCode"],
+                "deliveryNoteNo" to row["deliveryNoteNo"],
+                "receiptDate" to row["receiptDate"],
+                "itemCode" to row["itemCode"],
+                "itemName" to row["itemName"],
+                "acceptedQty" to (row["acceptedQty"]?.let { n -> (n as? Number)?.toDouble() } ?: 0.0),
+                "receivedQty" to (row["acceptedQty"]?.let { n -> (n as? Number)?.toDouble() } ?: 0.0),
+                "demandQty" to (row["demandQty"]?.let { n -> (n as? Number)?.toDouble() } ?: 0.0),
+                "uom" to row["uom"],
+                "purchaseUomDesc" to row["purchaseUomDesc"],
+                "stockUomDesc" to row["stockUomDesc"],
+                "productLotNo" to row["productLotNo"],
+                "expiryDate" to row["expiryDate"],
+                "supplierCode" to row["supplierCode"],
+                "supplier" to row["supplier"],
+                "status" to row["status"],
+                "grnId" to row["grnId"]
+            )
+        }
+    }
+
       /**
      * Queries the database for Stock Balance Report data (one summarized row per item).
      * Uses stock_ledger with report period (fromDate/toDate): opening = before fromDate, cum in/out = in period, current = up to toDate.
diff --git a/src/main/java/com/ffii/fpsms/modules/report/web/ReportController.kt b/src/main/java/com/ffii/fpsms/modules/report/web/ReportController.kt
index 008eaa9..6579462 100644
--- a/src/main/java/com/ffii/fpsms/modules/report/web/ReportController.kt
+++ b/src/main/java/com/ffii/fpsms/modules/report/web/ReportController.kt
@@ -320,4 +320,18 @@ class ReportController(
         return ResponseEntity(pdfBytes, headers, HttpStatus.OK)
     }
 
+    /**
+     * GRN (Goods Received Note) report data for Excel export.
+     * Query by receipt date range and optional item code. Returns JSON { "rows": [ ... ] }.
+     */
+    @GetMapping("/grn-report")
+    fun getGrnReport(
+        @RequestParam(required = false) receiptDateStart: String?,
+        @RequestParam(required = false) receiptDateEnd: String?,
+        @RequestParam(required = false) itemCode: String?
+    ): Map<String, Any> {
+        val rows = reportService.searchGrnReport(receiptDateStart, receiptDateEnd, itemCode)
+        return mapOf("rows" to rows)
+    }
+
 }
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