diff --git a/app/Services/Sales/TenantProspectService.php b/app/Services/Sales/TenantProspectService.php
index a8d0aa2a..a4a0c021 100644
--- a/app/Services/Sales/TenantProspectService.php
+++ b/app/Services/Sales/TenantProspectService.php
@@ -119,6 +119,13 @@ public function convertToTenant(TenantProspect $prospect, int $convertedBy): Ten
                 'tenant_type' => 'STD',  // STD = Standard (일반 고객)
             ]);
 
+            // 전환한 사용자를 테넌트에 연결 (user_tenants)
+            $tenant->users()->attach($convertedBy, [
+                'is_active' => true,
+                'is_default' => false,
+                'joined_at' => now(),
+            ]);
+
             // 영업권 상태 업데이트
             $prospect->update([
                 'status' => TenantProspect::STATUS_CONVERTED,