To Create New Contracts go to Sales -> Configuration -> Contracts.

Confirm the Contract by Clicking the 'Confirm' Button and add Contract Lines.

Now the State of the Contract has been moved from 'New' into 'Ongoing'.

Invoices can be Generated by Clicking the 'Generate Invoice' Button and the Count of Generated Invoices will be Visible in the Smart tab.

Able to Lock the Contract by Clicking 'Lock' Button, so Further Modifications will not Possible.

To Reset the Contract and Modify, Click Unlock Button.

When the Next Invoice Date of the Contract Reaches the Current Date, the Invoice will be Automatically Generated.

All the Created Invoices can be Accessed from Invoices Smart tab.

When the Contract Reaches the Contract Expiration Reminder Period, it's State Automatically Changes to 'Expire Soon'.

When the Contract Reaches the Contract End Date, it's State Automatically Changes to 'Expired'.

Contract can be Cancelled by Clicking 'Cancel' Button.

State is Moved into 'Cancelled'.

Sale Orders Created for the Partner in Contract for the Corresponding Contract Lines are Visible Under Sale Order Lines tab.

Access Contracts from Customer Portal.

Portal User's Contracts will Display here.

Clicking on Contract Name will Open the Contract.

Contract Report can be Downloaded from Portal by Clicking this 'Report' Button.

Downloaded pdf Report of Contract.