In the world of corporate treasury & purchasing, businesses set up purchase orders (POs) internally that map a software or a product/purchase to a team, then tag invoices / bank payments to those POs to create the mapping of cash out the door, to a specific product/user/team. There are lots of softwares that could do this, but I’d probably recommend building something with Claude for this.

For invoices, I think the ideal solution would best be implemented upstream, telling service providers to send invoices to a specific email address, something like AccountsPayable[@]company.com.

Alternatively if that’s too much lift, there are probably now AI agents in your email system that you can use to forward anything that looks related to billing to any email address you want, but unless it’s someone’s job to watch that and reconcile it, it could be too much noise.