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 b9c9d36..e9cf4d1 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
@@ -647,10 +647,9 @@ return result
     }
 
     /**
-     * Queries the database for Stock In Traceability Report data (PO 入倉 / 入倉追蹤 PDF).
+     * Queries the database for Stock In Traceability Report data (入倉追蹤 PDF).
      * Joins stock_in_line, stock_in, items, qc_result, inventory_lot, inventory_lot_line, warehouse, and shop tables.
      * Supports comma-separated values for stockCategory (items.type) and itemCode.
-     * Adds `poM18CreatorDisplay` from `purchase_order.m18CreatedUId` via [M18GrnRules.formatM18CreatedUidForReport].
      */
     fun searchStockInTraceabilityReport(
         stockCategory: String?,
@@ -705,7 +704,6 @@ return result
             COALESCE(wh.code, '') as storeLocation,
             COALESCE(sp_si.code, sp_po.code, '') as supplierID,
             COALESCE(sp_si.name, sp_po.name, '') as supplierName,
-            po.m18CreatedUId AS poM18CreatedUId,
             TRIM(TRAILING '.' FROM TRIM(TRAILING '0' FROM FORMAT(SUM(COALESCE(sil.acceptedQty, 0)) OVER (PARTITION BY it.id), 2))) as totalStockInQty,
             TRIM(TRAILING '.' FROM TRIM(TRAILING '0' FROM FORMAT(SUM(COALESCE(sil.acceptedQty, 0)) OVER (PARTITION BY it.id), 2))) as totalIqcSampleQty
         FROM stock_in_line sil
@@ -740,20 +738,7 @@ return result
         ORDER BY it.code, sil.lotNo
     """.trimIndent()
 
-        val rows = jdbcDao.queryForList(sql, args)
-        return rows.map { row ->
-            val m = LinkedHashMap<String, Any?>(row)
-            val raw = m.remove("poM18CreatedUId")
-            val uid = when (raw) {
-                null -> null
-                is Number -> raw.toLong()
-                is BigDecimal -> raw.toLong()
-                else -> raw.toString().toLongOrNull()
-            }
-            m["poM18CreatorDisplay"] = M18GrnRules.formatM18CreatedUidForReport(uid)
-            @Suppress("UNCHECKED_CAST")
-            m as Map<String, Any>
-        }
+        return jdbcDao.queryForList(sql, args)
     }
 
     /**
@@ -808,7 +793,8 @@ return result
                 MAX(ROUND(COALESCE(pol.up, 0) * COALESCE(sil.acceptedQty, 0), 2)) AS lineAmount,
                 MAX(COALESCE(cur.code, '')) AS currencyCode,
                 MAX(grn.grn_code) AS grnCode,
-                MAX(grn.m18_record_id) AS grnId
+                MAX(grn.m18_record_id) AS grnId,
+                MAX(po.m18CreatedUId) AS poM18CreatedUId
             FROM stock_in_line sil
             LEFT JOIN items it ON sil.itemId = it.id
             LEFT JOIN purchase_order po ON sil.purchaseOrderId = po.id
@@ -870,7 +856,15 @@ return result
                 "lineAmount" to (row["lineAmount"]?.let { n -> (n as? Number)?.toDouble() } ?: 0.0),
                 "currencyCode" to row["currencyCode"],
                 "grnCode" to row["grnCode"],
-                "grnId" to row["grnId"]
+                "grnId" to row["grnId"],
+                "poM18CreatorDisplay" to M18GrnRules.formatM18CreatedUidForReport(
+                    when (val v = row["poM18CreatedUId"]) {
+                        null -> null
+                        is Number -> v.toLong()
+                        is BigDecimal -> v.toLong()
+                        else -> v.toString().toLongOrNull()
+                    },
+                ),
             )
         }
     }
diff --git a/src/main/resources/jasper/StockInTraceabilityReport.jrxml b/src/main/resources/jasper/StockInTraceabilityReport.jrxml
index 6804432..a3ce02c 100644
--- a/src/main/resources/jasper/StockInTraceabilityReport.jrxml
+++ b/src/main/resources/jasper/StockInTraceabilityReport.jrxml
@@ -57,7 +57,6 @@
 	<field name="storeLocation" class="java.lang.String"/>
 	<field name="supplierID" class="java.lang.String"/>
 	<field name="supplierName" class="java.lang.String"/>
-	<field name="poM18CreatorDisplay" class="java.lang.String"/>
 	<field name="totalStockInQty" class="java.lang.String"/>
 	<field name="totalIqcSampleQty" class="java.lang.String"/>
 	<field name="totalIqcDefectQty" class="java.lang.String"/>
@@ -174,7 +173,7 @@
 				<text><![CDATA[送貨單編號]]></text>
 			</staticText>
 			<staticText>
-				<reportElement stretchType="RelativeToTallestObject" x="690" y="80" width="65" height="28" uuid="db5b9c55-0185-420b-ba6c-0e10d154cc8a">
+				<reportElement stretchType="RelativeToTallestObject" x="690" y="80" width="108" height="28" uuid="db5b9c55-0185-420b-ba6c-0e10d154cc8a">
 					<property name="com.jaspersoft.studio.unit.y" value="px"/>
 					<property name="com.jaspersoft.studio.unit.height" value="px"/>
 					<property name="com.jaspersoft.studio.unit.width" value="px"/>
@@ -184,18 +183,6 @@
 				</textElement>
 				<text><![CDATA[供應商名稱]]></text>
 			</staticText>
-			<staticText>
-				<reportElement stretchType="RelativeToTallestObject" x="758" y="80" width="42" height="28" uuid="a1b2c3d4-e5f6-7890-abcd-ef1234567890">
-					<property name="com.jaspersoft.studio.unit.y" value="px"/>
-					<property name="com.jaspersoft.studio.unit.height" value="px"/>
-					<property name="com.jaspersoft.studio.unit.width" value="px"/>
-				</reportElement>
-				<textElement textAlignment="Left" verticalAlignment="Middle">
-					<font fontName="微軟正黑體" size="9"/>
-				</textElement>
-				<text><![CDATA[PO建立者
-(M18)]]></text>
-			</staticText>
 			<staticText>
 				<reportElement stretchType="RelativeToTallestObject" x="220" y="80" width="60" height="28" uuid="cd7a146a-1af0-4428-9b88-dcb159691656">
 					<property name="com.jaspersoft.studio.unit.y" value="px"/>
@@ -484,7 +471,7 @@
 				<textFieldExpression><![CDATA[$F{storeLocation}]]></textFieldExpression>
 			</textField>
 			<textField textAdjust="StretchHeight">
-				<reportElement x="690" y="2" width="65" height="18" uuid="eb6ed0fc-bfda-4a89-a163-fe08b00a0120">
+				<reportElement x="690" y="2" width="108" height="18" uuid="eb6ed0fc-bfda-4a89-a163-fe08b00a0120">
 					<property name="com.jaspersoft.studio.unit.height" value="px"/>
 				</reportElement>
 				<textElement textAlignment="Left" verticalAlignment="Top">
@@ -492,15 +479,6 @@
 				</textElement>
 				<textFieldExpression><![CDATA[$F{supplierName}]]></textFieldExpression>
 			</textField>
-			<textField textAdjust="StretchHeight">
-				<reportElement x="758" y="2" width="42" height="18" uuid="f2e3d4c5-b6a7-8901-cdef-234567890abc">
-					<property name="com.jaspersoft.studio.unit.height" value="px"/>
-				</reportElement>
-				<textElement textAlignment="Left" verticalAlignment="Top">
-					<font fontName="微軟正黑體" size="9"/>
-				</textElement>
-				<textFieldExpression><![CDATA[$F{poM18CreatorDisplay}]]></textFieldExpression>
-			</textField>
 		</band>
 	</detail>
 </jasperReport>