Yes. You can setup Ezy Invoice to work in a multi-user network environment with all users working concurrently or at the same time. When installed correctly, updates to the database done by one user will be available to all other users sitting on their own computers. When more than one user attempts to create a new invoice, the first user will get invoice no# 1001, 2nd user will get 1002 and so on. Our Pro version is recommended for 1 to 3 users while our Client/ Server Version is recommended for 1 to 30 users.
Also you can restrict what other users can and cannot do. For example you may want to stop users from deleting invoices. Or you may not want them looking at reports. The screen shot shows the user permissions screen.