diff --git a/src/main/java/com/ffii/fpsms/modules/jobOrder/service/PSService.kt b/src/main/java/com/ffii/fpsms/modules/jobOrder/service/PSService.kt
index 3ab55a3..8184df1 100644
--- a/src/main/java/com/ffii/fpsms/modules/jobOrder/service/PSService.kt
+++ b/src/main/java/com/ffii/fpsms/modules/jobOrder/service/PSService.kt
@@ -123,6 +123,41 @@ open class PSService(
         }
     }
 
+    /**
+     * Bulk import fake on-hand: clear table, then insert rows from Excel.
+     * rows: list of maps with keys like "itemCode" and "onHandQty".
+     */
+    fun importFakeOnHand(rows: List<Map<String, Any?>>) {
+        // 1. Clear existing overrides
+        jdbcDao.executeUpdate("DELETE FROM item_fake_onhand", emptyMap<String, Any>())
+
+        // 2. Normalise and de-duplicate by itemCode (last one wins)
+        val byItemCode = LinkedHashMap<String, Number>()
+
+        rows.forEach { row ->
+            val itemCode = row["itemCode"]?.toString()?.trim()
+            if (itemCode.isNullOrBlank()) return@forEach
+
+            val rawQty = row["onHandQty"]
+            val qty: Number? = when (rawQty) {
+                null -> null
+                is Number -> rawQty
+                else -> rawQty.toString().toDoubleOrNull()
+            }
+            if (qty == null) return@forEach
+
+            byItemCode[itemCode] = qty
+        }
+
+        // 3. Insert one row per itemCode
+        byItemCode.forEach { (itemCode, qty) ->
+            jdbcDao.executeUpdate(
+                "INSERT INTO item_fake_onhand (itemCode, onHandQty) VALUES (:itemCode, :onHandQty)",
+                mapOf("itemCode" to itemCode, "onHandQty" to qty)
+            )
+        }
+    }
+
     /** Set or clear coffee_or_tea for itemCode + systemType (coffee / tea / lemon). */
     fun setCoffeeOrTea(itemCode: String, systemType: String, enabled: Boolean) {
         val args = mapOf("itemCode" to itemCode, "systemType" to systemType)
diff --git a/src/main/java/com/ffii/fpsms/modules/jobOrder/web/PSController.kt b/src/main/java/com/ffii/fpsms/modules/jobOrder/web/PSController.kt
index df74fb7..107aab5 100644
--- a/src/main/java/com/ffii/fpsms/modules/jobOrder/web/PSController.kt
+++ b/src/main/java/com/ffii/fpsms/modules/jobOrder/web/PSController.kt
@@ -15,6 +15,17 @@ import org.springframework.http.ResponseEntity
 class PSController(
     private val psService: PSService,
 ) {
+    /**
+     * Bulk import fake on-hand overrides from Excel.
+     * Replaces the entire item_fake_onhand table with the provided rows.
+     * Expected body: [{ "itemCode": "...", "onHandQty": 123.45 }, ...]
+     */
+    @PostMapping("/importFakeOnHand")
+    fun importFakeOnHand(@RequestBody rows: List<Map<String, Any?>>): ResponseEntity<Map<String, Any>> {
+        psService.importFakeOnHand(rows)
+        return ResponseEntity.ok(mapOf("ok" to true, "count" to rows.size))
+    }
+
     @GetMapping("/search-ps")
     fun searchPs(@RequestParam produceAt: String): ResponseEntity<List<Map<String, Any>>> {
         // Returns fields: id, produceAt, totalEstProdCount, totalFGType
diff --git a/src/main/resources/db/changelog/changes/20260318_01_add_ps_indexes.sql b/src/main/resources/db/changelog/changes/20260318_01_add_ps_indexes.sql
new file mode 100644
index 0000000..8a87313
--- /dev/null
+++ b/src/main/resources/db/changelog/changes/20260318_01_add_ps_indexes.sql
@@ -0,0 +1,9 @@
+-- liquibase formatted sql
+-- changeset ai:add_indexes_for_ps
+
+--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.STATISTICS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'production_schedule' AND INDEX_NAME = 'idx_production_schedule_produceAt'
+CREATE INDEX idx_production_schedule_produceAt ON production_schedule (produceAt);
+
+--precondition-sql-check expectedResult:0 SELECT COUNT(*) FROM information_schema.STATISTICS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'production_schedule_line' AND INDEX_NAME = 'idx_production_schedule_line_prodScheduleId'
+CREATE INDEX idx_production_schedule_line_prodScheduleId ON production_schedule_line (prodScheduleId);
+