TeamGrid should have an accounting app with integrated proposal and invoice creation.
Will this feature include expenses? Will there be an opportunity to export (DATEV)?
I guess a very good integration to easybill e.g. would be enough. At least for us. ;-)
Offer and Invoice System to create invoices and offerts for the customer. Take the Time entries and convert it in an invoice with HBCI-Balance to check if the customer have payed the invoice.
Die Abrechnung gebuchter Zeiten sollte Verrechungseinheiten berücksichtigen