I think this is because Google just doesn't do a lot of the data scraping in G Suite accounts that it does in gmail accounts. So I think it just doesn't have an

I think this is because Google just doesn't do a lot of the data scraping in G Suite accounts that it does in gmail accounts. So I think it just doesn't have any stored "purchases" to show, rather the fact that the purchase interface doesn't work. I say this based on information I've read in the past about how G Suite / Google Apps accounts are treated. I hope this is the case, but am certainly not sure about it.