How do I add bandwidth to an existing pkg & charge for it?

[dswp]

I'm not sure how to set it up properly - Config options? or Addon? Either will bill the client, but will either of them change the bandwidth on the server?

[WHMCS John]

If you're using cPanel or DirectAdmin you can use our Configurable Package Addon to automate it: http://whmcs.com/configurableaddon.php

Otherwise I'm afraid you'd need to adjust the client's account limits manually.

[dswp]

I was looking at the screenshot and it looks like I can offer a price per bandwidth upgrade and the client can select what they want. And you are saying it will be automatically provisioned in cpanel. I use cpanel/whm. Can a client who has already purchased an old-style package upgrade with this addon too?

[WHMCS John]

I was looking at the screenshot and it looks like I can offer a price per bandwidth upgrade and the client can select what they want.

Yes

 

And you are saying it will be automatically provisioned in cpanel. I use cpanel/whm.

Correct.