FBA pickup helps solve both these requirements.
FBA Pickup will generate a Delivery Challan on the Prepare Shipment Page of your shipment. Instead of generating one yourself, you can print this Challan and insert one copy into each box. You can watch the video for details or follow the SoP/workflow below.
If you have generated an IRN number from the government portal, the same can be inserted into the Delivery Challan in the first step (Shipment Details) after clicking the Generate Delivery Challan button.
For E-Way Bills, Amazon will do so automatically if your declared value is more than INR 50,000. You can visit https://ewaybillgst.gov.in/ for E-way bill copy (Reports > My EWB Reports > Outward Supplies)
Steps to print Delivery Challan/ Stock Transfer Note/ Tax Invoice:-
a. Click on Inventory and then on Manage FBA Shipments
b. Search by ShipmentID and locate the shipment in question
c. Click on Work on Shipment