recurring_invoice->line_items; foreach($line_items as $key => $line_item) { $product = Product::where('company_id', $this->recurring_invoice->company_id) ->where('product_key', $line_item->product_key) ->where('is_deleted', 0) ->first(); if($product){ $line_items[$key]->cost = $product->cost; } } $this->recurring_invoice->line_items = $line_items; $this->recurring_invoice->calc()->getInvoice()->save(); } }