Need One BU to create Invoices and payments for multiple BU expense reports

Hello,

Currently we have a scenario where we have two BU being used for the purpose of creating expense reports. We are only using one business unit for the purpose of creating invoices and paying them. So when we run the create expense reimbursements and process cash advances programs it goes into error stating that the BU is not configured for or doesn't have a default liability account.

Can/ do we have a setup where we can use one BU for the prupose of invoicing and payment for multiple BU Expense reports.