diff --git a/app/Console/Commands/SupplierAccountSync.php b/app/Console/Commands/SupplierAccountSync.php
index 9f1f996..601a98e 100644
--- a/app/Console/Commands/SupplierAccountSync.php
+++ b/app/Console/Commands/SupplierAccountSync.php
@@ -60,7 +60,7 @@ class SupplierAccountSync extends Command
 				}
 
 			} else {
-				$this->error(sprintf('User doesnt exist with email (%s)',$customer->email));
+				$this->error(sprintf('User doesnt exist with email (%s:%s)',$customer->id,$customer->email));
 			}
 		}
     }
diff --git a/database/migrations/2022_08_10_162636_supplier_user_constraint.php b/database/migrations/2022_08_10_162636_supplier_user_constraint.php
new file mode 100644
index 0000000..7b4e993
--- /dev/null
+++ b/database/migrations/2022_08_10_162636_supplier_user_constraint.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+		Schema::table('supplier_user', function (Blueprint $table) {
+			$table->unique(['supplier_id','id']);
+		});
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+		Schema::table('supplier_user', function (Blueprint $table) {
+			$table->dropUnique(['supplier_id','id']);
+		});
+    }
+};
\ No newline at end of file