diff --git a/svc/.env.local b/svc/.env.local
index e04edc3..8a42090 100644
--- a/svc/.env.local
+++ b/svc/.env.local
@@ -27,7 +27,8 @@ MSSQL_CONN=sqlserver://sa:Gil_0150@100.127.186.137:1433?database=BAGGI_V3&encryp
 # ===============================
 # PDF
 # ===============================
-PDF_FONT_DIR=/opt/bssapp/svc/fonts
+PDF_FONT_DIR=D:\\baggitekstilas\\software projects\\bssapp\\bssapp\\svc\\fonts
 API_HOST=0.0.0.0
 API_PORT=8080
 
+
diff --git a/svc/queries/order_write.go b/svc/queries/order_write.go
index be73c16..680d08a 100644
--- a/svc/queries/order_write.go
+++ b/svc/queries/order_write.go
@@ -745,6 +745,16 @@ VALUES (
 `
 
 	fmt.Println("🟪 HEADER INSERT ÇALIŞIYOR...")
+	fmt.Printf(
+		"🧾 HEADER DEBUG | CurrAccType=%v CurrAcc=%q Office=%q StoreType=%v Store=%q OrdererOffice=%q OrdererStore=%q\n",
+		nullableInt16(header.CurrAccTypeCode, 0).Int16,
+		safeNS(header.CurrAccCode),
+		safeNS(header.OfficeCode),
+		nullableInt16(header.StoreTypeCode, 0).Int16,
+		safeNS(header.StoreCode),
+		safeNS(header.OrdererOfficeCode),
+		safeNS(header.OrdererStoreCode),
+	)
 
 	// ✅ exRate burada gerçekten kullanılıyor (ExchangeRate parametresi)
 	headerParams := []any{
@@ -785,7 +795,7 @@ VALUES (
 		nullableInt32ToInt16(header.CompanyCode, 1),
 		nullableString(header.OfficeCode, "101"),
 		nullableInt16(header.StoreTypeCode, 5),
-		nullableString(header.StoreCode, ""),
+		nullableString(models.NullString{}, ""),
 
 		nullableInt16(header.POSTerminalID, 0),
 		nullableString(header.WarehouseCode, "1-0-12"),
@@ -793,7 +803,7 @@ VALUES (
 
 		nullableInt32ToInt16(header.OrdererCompanyCode, 1),
 		nullableString(header.OrdererOfficeCode, "101"),
-		nullableString(header.OrdererStoreCode, ""),
+		nullableString(models.NullString{}, ""),
 
 		nullableString(header.GLTypeCode, ""),
 		nullableString(header.DocCurrencyCode, "TRY"),
diff --git a/svc/routes/orders.go b/svc/routes/orders.go
index 3e17214..efc3b58 100644
--- a/svc/routes/orders.go
+++ b/svc/routes/orders.go
@@ -105,7 +105,7 @@ func CreateOrderHandler(pg *sql.DB, mssql *sql.DB) http.HandlerFunc {
 		w.Header().Set("Content-Type", "application/json; charset=utf-8")
 
 		// --------------------------------------------------
-		// JWT CLAIMS
+		// JWT CLAIMS (TEK KAYNAK)
 		// --------------------------------------------------
 		claims, ok := auth.GetClaimsFromContext(r.Context())
 		if !ok || claims == nil {
@@ -114,27 +114,43 @@ func CreateOrderHandler(pg *sql.DB, mssql *sql.DB) http.HandlerFunc {
 		}
 
 		user := utils.UserFromClaims(claims)
-
-		if !ok || claims == nil {
-			http.Error(w, "Yetkisiz", http.StatusUnauthorized)
-			return
-		}
-
-		user = utils.UserFromClaims(claims)
 		if user == nil {
-			http.Error(w, "Yetkisiz", http.StatusUnauthorized)
+			http.Error(w, "Kullanici dogrulanamadi", http.StatusUnauthorized)
 			return
 		}
 
+		fmt.Printf("[CREATE] hit user=%s role=%s\n", user.Username, user.RoleCode)
+
 		var payload struct {
 			Header models.OrderHeader   `json:"header"`
 			Lines  []models.OrderDetail `json:"lines"`
 		}
 
 		if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
-			http.Error(w, "Geçersiz JSON", http.StatusBadRequest)
+			fmt.Printf("[CREATE] decode error: %v\n", err)
+			http.Error(w, "Gecersiz JSON", http.StatusBadRequest)
 			return
 		}
+		fmt.Printf(
+			"[CREATE] payload header_id=%s curr_acc=%s office=%s store=%s orderer_office=%s orderer_store=%s lines=%d\n",
+			payload.Header.OrderHeaderID,
+			payload.Header.CurrAccCode.String,
+			payload.Header.OfficeCode.String,
+			payload.Header.StoreCode.String,
+			payload.Header.OrdererOfficeCode.String,
+			payload.Header.OrdererStoreCode.String,
+			len(payload.Lines),
+		)
+		fmt.Printf(
+			"🧾 CREATE PAYLOAD | header_id=%s curr_acc=%s office=%s store=%s orderer_office=%s orderer_store=%s lines=%d\n",
+			payload.Header.OrderHeaderID,
+			payload.Header.CurrAccCode.String,
+			payload.Header.OfficeCode.String,
+			payload.Header.StoreCode.String,
+			payload.Header.OrdererOfficeCode.String,
+			payload.Header.OrdererStoreCode.String,
+			len(payload.Lines),
+		)
 
 		// --------------------------------------------------
 		// INSERT
@@ -142,7 +158,7 @@ func CreateOrderHandler(pg *sql.DB, mssql *sql.DB) http.HandlerFunc {
 		newID, lineResults, err := queries.InsertOrder(
 			payload.Header,
 			payload.Lines,
-			user, // ✅ *models.User
+			user, // *models.User
 		)
 
 		if err != nil {
@@ -155,7 +171,14 @@ func CreateOrderHandler(pg *sql.DB, mssql *sql.DB) http.HandlerFunc {
 				return
 			}
 
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+			// SYSTEM ERROR
+			utils.LogError("ORDER_CREATE", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			_ = json.NewEncoder(w).Encode(map[string]any{
+				"code":    "ORDER_CREATE_FAILED",
+				"message": "Siparis kaydedilirken beklenmeyen bir hata olustu.",
+				"detail":  err.Error(),
+			})
 			return
 		}
 
diff --git a/ui/quasar.config.js.temporary.compiled.1771597158912.mjs b/ui/quasar.config.js.temporary.compiled.1771666977328.mjs
similarity index 100%
rename from ui/quasar.config.js.temporary.compiled.1771597158912.mjs
rename to ui/quasar.config.js.temporary.compiled.1771666977328.mjs
diff --git a/ui/src/stores/orderentryStore.js b/ui/src/stores/orderentryStore.js
index cbd033a..871a7c3 100644
--- a/ui/src/stores/orderentryStore.js
+++ b/ui/src/stores/orderentryStore.js
@@ -2611,7 +2611,33 @@ export const useOrderEntryStore = defineStore('orderentry', {
           'color:#c9a873;font-weight:bold'
         )
 
+        // Ensure backend string fields are sent as strings.
+        if (header) {
+          header.OfficeCode = header.OfficeCode != null ? String(header.OfficeCode) : header.OfficeCode
+          header.StoreCode = header.StoreCode != null ? String(header.StoreCode) : header.StoreCode
+          header.OrdererOfficeCode = header.OrdererOfficeCode != null ? String(header.OrdererOfficeCode) : header.OrdererOfficeCode
+          header.OrdererStoreCode = header.OrdererStoreCode != null ? String(header.OrdererStoreCode) : header.OrdererStoreCode
+          // PaymentTerm must be numeric (int16) or null for backend.
+          if (header.PaymentTerm === '' || header.PaymentTerm == null) {
+            header.PaymentTerm = null
+          } else if (typeof header.PaymentTerm === 'string') {
+            const n = Number(header.PaymentTerm)
+            header.PaymentTerm = Number.isNaN(n) ? null : n
+          }
+        }
         console.log('HEADER:', JSON.parse(JSON.stringify(header)))
+        console.log('HEADER KEYS:', {
+          OrderHeaderID: header?.OrderHeaderID,
+          CurrAccTypeCode: header?.CurrAccTypeCode,
+          CurrAccCode: header?.CurrAccCode,
+          OfficeCode: header?.OfficeCode,
+          StoreTypeCode: header?.StoreTypeCode,
+          StoreCode: header?.StoreCode,
+          OrdererOfficeCode: header?.OrdererOfficeCode,
+          OrdererStoreCode: header?.OrdererStoreCode,
+          PaymentTerm: header?.PaymentTerm,
+          DocCurrencyCode: header?.DocCurrencyCode
+        })
 
         lines.forEach((l, i) => {
           console.log(`LINE[${i}]`, {