Newbie here. I heard and read the reviews about WHMCS. So far I am very impressed with the showcases, features, etc. I want to integrate an online billing system for my existing and future clients. I have been using ClientExec and find it little tricky to learn. The reviews brought me here and would like to test it out myself. With your help, I need someone to please point me in the right direction to get me started with my WHMCS app?
* Customizing (design)
* Help Tutorials to learn how to use the features
Many thanks in advance