How Can we use Joomla Custom fields in our newsletter templates?
I was surprised that this is not available in version 7, while there is integration with third party custom fields (e.g. Community Builder).
Unfortunately this is not possible. It could be a nice feature though. Please, feel free to post this as a feature request (https://www.acymailing.com/feature-requests/) so other users can upvote it.
which Joomla custom fields are you referring to? Are you asking for Joomla article custom fields or Joomla user custom fields?
I ask because both are available to use in AcyMailing
Joomla article custom fields can be used in the article content block
Joomla's user custom fields can be used in the dynamic text feature
Oops.... my bad. I completely overlooked that.