New "Invoice Missing" field appeared in my seller central

Is everyone now seeing this? It’s only just appeared in my account a few hours ago and It’s alarming to me as there’s obviously a lot missing as I only produce upon request in the past.

Going forward is there some big changes that makes this a requirement and what is the best way to automate this?

I once requested an invoice from a seller who gave me a link to their rather cool system (paid for service) which you enter you amazon order id and filling your own details and the site will generate the invoice. I’m trying to find the best way to automatically produce these going forward if it’s now a requirement or part of some new metrics we have to fulfill.

Thanks for any advice