Impossible to install without body field

I think it could also be a problem if we don't have a "page" content type.

I was actually wondering, when we implemented this a few years ago, whether this issue would ever come up. Now, it actually happened, but I'm not sure if we can address this. The whole notification template system is built around the assumption that a notification has a subject and a body. That's what most channels also require, the most popular example being an email notification.

I don't think we have a way to provide a generic solution that wouldn't even have that common ground. Unless, there is something I'm missing, it looks like this module is not for sites that are restricted that much and would allow for a body field.