[Translation from Japanese to English ] I understand that it will not affect the performance of the item, but our cus...

Original text

もちろん商品の性能にはまったく問題ないことを理解しています。
しかし、我々の顧客は怒ります。
（何も言ってこない顧客もいますが）

もし今後、傷のない商品の納品が無理でしたら事前に連絡してください。

Translation / English

I understand that it will not affect the performance of the item, but our customers will be upset (Although some don't say anything).

From now on, please let us know in advance if you cannot send us the items without any damages.

Translation / English

Of course I understand that there are no problems with the product's functionality.
However, our customers are angry.
(there are customers who do not say anything, though)

From now on, please contact us if it is inevitable for the products to have flaws.

Translation / English

Of course, we understand that there are no problems with the performance ability of the items.
However, our customers will be unhappy with them. (Although we also have customers who choose not to complain.)

Please let us know in advance if you will not be able to provide us with items that are not dented.

Translation / English

I understand that there is not any problem with its performance; however, our customers are not happy. (Some of them are not complaining.)

Please let us know if it is impossible to deliver products without any damages in the future.