User not enabled if he doesn't pay yet

Hi,

What you're requesting is not technically possible.
That's because if we block the user account, he won't be able to log on the checkout and thus the checkout will display again the registration form and thus he won't be able to finish the checkout.

No, you want a different solution in your case I think. You should have your moodle content available only to some user group(s) (moodle roles that can be synchronized with joomla's user groups with Joomdle) and manually add the user group(s) to the user after the payment is received. In fact, you could even automate that process with the "user group after purchase" option of products in the Business edition, allowing HikaShop to add a group to the user after the purchase of a product is confirmed.

Hi,

This is the documentation of Joomdle which talks about synchronizing the Joomla user groups with Joomdle's:
www.joomdle.com/wiki/Usergroups
Now regarding the use of the roles themselves in Joomdle so that the users can only see what you want them to see based on their role, Moodle has some documentation about that here:
docs.moodle.org/28/en/Assign_roles
However, I've never used Moodle or Joomdle so I'm just talking about what I can read online. Regarding the setup of Moodle, I would recommend that you ask on Moodle/Joomdle.
It's normal that the user can login in Moodle before the payment. But it should not have access to anything. Then, you would have HikaShop add him to the Joomla user group after the payment which would then add a new role to his user account in Joomdle, which would then give him access to the course he purchased in HikaShop. It least, that's how I understand it would work.