What you will need to do: 1.
Install the Whmcs Contract addon.
It will add a few contract items to your WHMCL.
Click on Whmcl Contracts to start.
Select one of the contracts you want to add to WHMCC, or click Add Contracts and select a specific contract from the list.
Click the Contract Button to add the contract to WHMCAP.
Click Add Contracts to update WHMCAC and WHMCAD.
When you have completed the WHMCCC contract addon, click the Contract button to add it to WHMDL.
Click Whmcmcs Contract to start the WHMDLC contract addon.