Software with Sales/Contract Order Processing

Hi

I am from a small company and the nature of our business is that we receive orders/contracts from clients which needs to be invoiced over a period of time (from 3 months to 5 years)

We are looking for an accounting system which can, in addition to the normal accounting functions, do the following

1) Set up Sales Orders - these are orders from clients and represent the total value of our sale over a period of time
2) Invoice monthly against these sales orders - invoices need to be raised automatically on a recurring basis over the specified period of time. These invoices may be of equal or of arbitrary amounts as specified by the user.
3) Control over the orders received and invoicing to ensure that the projects are invoiced properly and correctly and that no under invoicing or over invoicing takes place

From my research there is no specific module to do this in accounting software - can anyone help please ? I have done a test run of the Sage Accounting software as well

Thanks

Guess that this requires a custom software solution. Some software vendors are offering this for their more complex e-commerce business products (these often come with some kind of scripting language to do such customizations).

But unfortunately I don't have a specific recommendation for you - maybe worth looking at SAP or Oracle. Anyway, this stands in contrast to your first sentence "we are a small company". Their solutions are usually exceeding any budget ;-)