You may notice your orders going with APC Non Surcharged Services are failing with an error message similar to the below:
You'll likely experience this error if you're trying to send an order with more than 2 products on a Non Conveyable APC Service. This is due to an update by APC on October 19th 2020, which only allows 2 or less products in one order to go via a Non Conveyable Service.
Therefore, for larger orders, it's worth looking at alternative services to use with APC so that you don't see repeated failures such as shown above.
If you have further issues here, or are unsure of how to get this sorted, please feel free to contact Support.