My billing software is showing AMC expired. Please let me know how to renew.

You can renew your AMC from with in the Innoventry Software by following the below given steps:

1) Go to Help menu.

2) Click on Product Registration.

3) Under License Information  click on  Pay Now button to renew your AMC.

4) After payment is done. Click on Reload License.

5) Your AMC date is extended. You can verify the same in Product Registration Window.