post https://gateway.stage.bill.com/connect/v3/network/invitation/accept
Accept a connection request sent by a vendor or customer.
The organization receiving the connection request must have auto-connections disabled. If auto-connections are not disabled, BILL automatically connects the organizations in the BILL Network.
When the invitation is accepted, BILL connects the two organizations in the BILL Network.
See BILL Network in the Guides section for more information, sample requests, and responses.