Firstly, to find the best solution, map out the needs of your business. The following questions can be helpful.
1. Do you already use an accounting or business software?
2. Do you want to send e-invoices? What is the expected volume? Do you want to send e-invoices to banks?
3. Do you want to start receiving e-invoices?
4. What is the total volume of purchase invoices in one month?
5. Does your company use expense reports?
6. What kind of confirmation processes are in place for purchase invoices? How many people are involved in the confirmation process?