diff --git a/database/migrations/2026_05_27_160000_extend_purchases_for_partial_receipt.php b/database/migrations/2026_05_27_160000_extend_purchases_for_partial_receipt.php
index 47d62ea..00807e8 100644
--- a/database/migrations/2026_05_27_160000_extend_purchases_for_partial_receipt.php
+++ b/database/migrations/2026_05_27_160000_extend_purchases_for_partial_receipt.php
@@ -9,32 +9,41 @@ return new class extends Migration
 {
     public function up(): void
     {
-        Schema::table('purchases', function (Blueprint $t) {
-            $t->foreignId('warehouse_id')->nullable()->after('supplier_id')
-                ->constrained('warehouses')->nullOnDelete();
-        });
+        // Idempotent: MariaDB has no transactional DDL, so a half-applied prior
+        // run can leave columns/tables behind without recording the migration.
+        // Guard each step so a re-run completes instead of erroring on duplicates.
+        if (! Schema::hasColumn('purchases', 'warehouse_id')) {
+            Schema::table('purchases', function (Blueprint $t) {
+                $t->foreignId('warehouse_id')->nullable()->after('supplier_id')
+                    ->constrained('warehouses')->nullOnDelete();
+            });
+        }
 
-        Schema::table('purchase_items', function (Blueprint $t) {
-            $t->decimal('qty_received', 10, 2)->default(0)->after('qty');
-        });
+        if (! Schema::hasColumn('purchase_items', 'qty_received')) {
+            Schema::table('purchase_items', function (Blueprint $t) {
+                $t->decimal('qty_received', 10, 2)->default(0)->after('qty');
+            });
+        }
 
         // Backfill: items previously marked `received=true` were fully received.
         DB::statement('UPDATE purchase_items SET qty_received = qty WHERE received = 1');
 
-        Schema::create('supplier_part_prices', function (Blueprint $t) {
-            $t->id();
-            $t->foreignId('company_id')->constrained()->cascadeOnDelete();
-            $t->foreignId('supplier_id')->constrained()->cascadeOnDelete();
-            $t->foreignId('part_id')->constrained()->cascadeOnDelete();
-            $t->foreignId('purchase_id')->nullable()->constrained()->nullOnDelete();
-            $t->decimal('price', 12, 2);
-            $t->string('currency', 6)->default('MDL');
-            $t->dateTime('observed_at');
-            $t->timestamps();
+        if (! Schema::hasTable('supplier_part_prices')) {
+            Schema::create('supplier_part_prices', function (Blueprint $t) {
+                $t->id();
+                $t->foreignId('company_id')->constrained()->cascadeOnDelete();
+                $t->foreignId('supplier_id')->constrained()->cascadeOnDelete();
+                $t->foreignId('part_id')->constrained()->cascadeOnDelete();
+                $t->foreignId('purchase_id')->nullable()->constrained()->nullOnDelete();
+                $t->decimal('price', 12, 2);
+                $t->string('currency', 6)->default('MDL');
+                $t->dateTime('observed_at');
+                $t->timestamps();
 
-            $t->index(['company_id', 'supplier_id', 'part_id', 'observed_at']);
-            $t->index(['company_id', 'part_id', 'observed_at']);
-        });
+                $t->index(['company_id', 'supplier_id', 'part_id', 'observed_at']);
+                $t->index(['company_id', 'part_id', 'observed_at']);
+            });
+        }
     }
 
     public function down(): void