Reply To: what is error code 5665 on amazon?

    John Aly

    Error code 5665 on Amazon refers to an issue related to your inventory. Specifically, it means that Amazon was unable to accept your shipment because the quantity of units you sent exceeded the quantity you specified in your shipping plan.
    To resolve this issue, you will need to adjust the quantity of units in your shipping plan to match the actual number of units you are sending.