AWS invoice retrieval is awkward

[BagOfMostlyWater]

AWS can be configured to send PDF invoices to the root account's email address. I'd rather that these be delivered to a shared Google Drive folder so that our administrative folks can view them. I was able to configure AWS to write out detailed billing information as a CSV to an S3 bucket, but it cannot do it in the form of an invoice (though the monthly report does reference an invoice ID). One can go to Services > Billing > Payment history and download invoices manually, but... that's manually. One would also have to manually save the PDFs to a bucket.

As far as I can tell there is no programmatic way to generate or retrieve invoices. I looked at the aws cli app, boto (only supports the Flexible Payment Service), and the Java API.

I can theoretically have the owner of the root account manually save the invoices from bmail to a shared bdrive folder. It might even be scriptable by using an email filter and the GMail API, but that is a little hokey.

This issue might be obviated when the AWS<==>chartstring process is resolved.