Hi Tim,
I've tested the JSON output against the "Connect Playground" site at MS. Unfortunately I can't really do much more... :-/
You can put an "echo $data_string;" on line 38 of includes/alerting/teams.inc.php and try to curl that, to try and find out what the issue is exactly...
Tom
Tom,There is an empty ‘[ ],’ section in the centre of the facts in the JSON, if I remove this from the test data it works?