I would guess this is a problem with the intellicart plugin not triggering events correctly. Not sure we can help much here as I don't believe the intellicart code is avaialble publicly for us to see anywhere and we don't use intellicart ourselves.

Thanks @danmarsden. I have reported your guess to Intellicart dev for further investigation.

Hi @danmarsden

Let me jump here from IntelliCart side to help with issue resolution.

We have re-checked both plugins, and our dev team found the next thing missed in tool_trigger plugin:

Moodle requires to use setType(). And there is not setType() for event field: https://github.com/catalyst/moodle-tool_trigger/blob/MOODLE_311_STABLE/classes/edit_form.php

Therefore, it allows to save only events with small name, which is not working for IntelliCart Events, 'cause we have pretty long names (e.g., "IntelliCart: IntelliCart product checkout").

Please, check the plugin on your side for this note.

Thank you @arina-mish for the analysis.
So I have added this line at 90:

$mform->setType('eventtomonitor', PARAM_TEXT);

and saving the event seems to work now ;-)
@danmarsden Can you test on your side if this fix would be OK for you?

Great - thanks for providing that further information! - feel free to submit a pull request for us to review otherwise this may sit here for a while until someone comes back to it.

thanks!

Thanks @danmarsden!
Pull request has been created as requested. Please check it, I am not sure if it is correct.
#201