With Abak, you can easily invoice your clients for work done by subcontrators, or for the company's own expenses!
Subcontractors can log their time directly in Abak. This is especially useful to validate invoices later on. When a subcontractor or supplier invoice is received, enter it in Abak and assign parts of the invoice to the project it belongs to!
Then, when invoicing your client, you can add those supplier invoices and subcontractor invoices to your list of expenses.
Vendor invoices are transferred to your accounting system's Account Receivables.