diff --git a/scratch/seed_pin_customer.go b/scratch/seed_pin_customer.go
new file mode 100644
index 0000000..fcad367
--- /dev/null
+++ b/scratch/seed_pin_customer.go
@@ -0,0 +1,70 @@
+//go:build ignore
+
+// seed_pin_customer.go — one ready-to-use customer for testing the interim PIN
+// login flow: phone +919000001234, PIN 1234, already set. Idempotent (re-running
+// just re-asserts the PIN to 1234).
+//
+// The phone is stored in NORMALISED +91 form, because CxPinLogin/CxVerifyPin
+// normalise the entered number to +91 before the DB lookup — a bare 10-digit
+// row would never be found.
+//
+// Run:  go run scratch/seed_pin_customer.go
+
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"doormile/config"
+	"doormile/db"
+	"doormile/models"
+	"doormile/utils"
+
+	"github.com/joho/godotenv"
+)
+
+func main() {
+	_ = godotenv.Load()
+	cfg := config.Load()
+	db.Connect(cfg)
+	if db.DB == nil {
+		log.Fatal("DB connection is nil")
+	}
+
+	const phone = "+919000001234" // customer types 9000001234; it normalises to this
+	pinHash, err := utils.HashPassword("1234")
+	if err != nil {
+		log.Fatalf("hash: %v", err)
+	}
+
+	var c models.AppCustomer
+	if db.DB.Where("phone = ?", phone).First(&c).Error != nil {
+		c = models.AppCustomer{
+			Firstname:        "Test",
+			Lastname:         "PinCustomer",
+			Phone:            phone,
+			Email:            "test.pin@doormile.in",
+			Loginpinhash:     pinHash,
+			Defaultlatitude:  11.0168,
+			Defaultlongitude: 76.9558,
+			Defaultpincode:   "641012",
+			Status:           "Active",
+			Configid:         1001,
+		}
+		if err := db.DB.Create(&c).Error; err != nil {
+			log.Fatalf("create: %v", err)
+		}
+		fmt.Println("created customer with PIN 1234")
+	} else {
+		c.Loginpinhash = pinHash
+		c.Status = "Active"
+		if err := db.DB.Save(&c).Error; err != nil {
+			log.Fatalf("update: %v", err)
+		}
+		fmt.Println("customer already existed — PIN re-asserted to 1234")
+	}
+
+	fmt.Printf("\n✅ ready:  appcustomerid=%d  phone=%s  login-as=9000001234  pin=1234\n",
+		c.Appcustomerid, c.Phone)
+}