diff --git a/database/migrations/2026_01_30_150000_add_missing_columns_to_sales_scenario_checklists_table.php b/database/migrations/2026_01_30_150000_add_missing_columns_to_sales_scenario_checklists_table.php
new file mode 100644
index 0000000..fd081f3
--- /dev/null
+++ b/database/migrations/2026_01_30_150000_add_missing_columns_to_sales_scenario_checklists_table.php
@@ -0,0 +1,107 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('sales_scenario_checklists', function (Blueprint $table) {
+            // scenario_type 컬럼 추가 (tenant_id 다음에)
+            if (!Schema::hasColumn('sales_scenario_checklists', 'scenario_type')) {
+                $table->enum('scenario_type', ['sales', 'manager'])
+                    ->default('sales')
+                    ->comment('시나리오 유형')
+                    ->after('tenant_id');
+            }
+        });
+
+        Schema::table('sales_scenario_checklists', function (Blueprint $table) {
+            // checkpoint_id 컬럼 추가 (step_id 다음에)
+            if (!Schema::hasColumn('sales_scenario_checklists', 'checkpoint_id')) {
+                $table->string('checkpoint_id', 50)
+                    ->nullable()
+                    ->comment('체크포인트 ID')
+                    ->after('step_id');
+            }
+        });
+
+        Schema::table('sales_scenario_checklists', function (Blueprint $table) {
+            // checked_at 컬럼 추가 (is_checked 다음에)
+            if (!Schema::hasColumn('sales_scenario_checklists', 'checked_at')) {
+                $table->timestamp('checked_at')
+                    ->nullable()
+                    ->comment('체크 일시')
+                    ->after('is_checked');
+            }
+        });
+
+        Schema::table('sales_scenario_checklists', function (Blueprint $table) {
+            // checked_by 컬럼 추가 (checked_at 다음에)
+            if (!Schema::hasColumn('sales_scenario_checklists', 'checked_by')) {
+                $table->unsignedBigInteger('checked_by')
+                    ->nullable()
+                    ->comment('체크한 사용자 ID')
+                    ->after('checked_at');
+            }
+        });
+
+        Schema::table('sales_scenario_checklists', function (Blueprint $table) {
+            // memo 컬럼 추가 (checked_by 다음에)
+            if (!Schema::hasColumn('sales_scenario_checklists', 'memo')) {
+                $table->text('memo')
+                    ->nullable()
+                    ->comment('메모')
+                    ->after('checked_by');
+            }
+        });
+
+        // 인덱스 추가 (이미 존재하면 무시)
+        Schema::table('sales_scenario_checklists', function (Blueprint $table) {
+            $sm = Schema::getConnection()->getDoctrineSchemaManager();
+            $indexes = $sm->listTableIndexes('sales_scenario_checklists');
+
+            // UNIQUE KEY 추가
+            if (!isset($indexes['sales_scenario_checkpoint_unique'])) {
+                $table->unique(
+                    ['tenant_id', 'scenario_type', 'step_id', 'checkpoint_id'],
+                    'sales_scenario_checkpoint_unique'
+                );
+            }
+
+            // INDEX 추가
+            if (!isset($indexes['sales_scenario_checklists_tenant_id_scenario_type_index'])) {
+                $table->index(
+                    ['tenant_id', 'scenario_type'],
+                    'sales_scenario_checklists_tenant_id_scenario_type_index'
+                );
+            }
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('sales_scenario_checklists', function (Blueprint $table) {
+            // 인덱스 삭제
+            $table->dropIndex('sales_scenario_checklists_tenant_id_scenario_type_index');
+            $table->dropUnique('sales_scenario_checkpoint_unique');
+
+            // 컬럼 삭제
+            $table->dropColumn([
+                'scenario_type',
+                'checkpoint_id',
+                'checked_at',
+                'checked_by',
+                'memo',
+            ]);
+        });
+    }
+};