You can't modify category 0, as it is created hardcoded in /appLms/lib/lib.reservation.php $re = array(); $re[0][CATEGORY_ID] = 0; $re[0][CATEGORY_NAME] = $lang->def('_UNDEFINITED'); $re[0][CATEGORY_ID_COURSE] = 0; $re[0][CATEGORY_MAX_SUBSCRIPTION] = 0; So it's not in the db. But in your first post,...

I've tested with a clean 1.4.3
for the other issue, I said it solved (it is a bug) and sent a PM. Never received a PM from you, instead.

The edit works perfectly.

Solved, you have a PM.

Yes, it is showing.
And my users receive the notification mail as well.
If you need a debugger, you should find one...

You should learn mvc...
Are $permission or $base_link_subscription variables defined in show.php?

/appCore/index.php?r=alms/subscription/unsubscriberequests

Please, provide screenshots to show evidence of the issue.
Thank you.

Forma ecommerce is quite ridiculous. It should be integrated with a true ecommerce.

If you have unsubscribe requests for a course, you should see a link in the /appCore/index.php?r=alms/course/show page