Amazons new API and Send To Amazon workflow

Hello,

for anyone using a third-party software to connect to amazons new API, are you finding that they are starting to split labelled and stickerless shipments again?

and if you use amazons new workflow without API, for 2D Barcoding, you have to add in every box dimension? and then match the 2D barcode with the boxes? I feel this is rediculous, I can send up to 100 boxes of items of all different sizes on a shipment, this just makes the workflow 10 x slower, having to weigh and type in the sizes of every box.

Is there a workaround for this?

Kind Regards,
Elliot