BuddyPress.org

@gabrielcrowe Have you dumped the whole $_POST variable to see what it looks like when bp_activity_posted_update fires? Is it totally empty, or are you just failing to populate $_POST[‘trackstr’]?

My guess is that it’s an AJAX issue. Activity updates are handled near the top of bp-default/_inc/global.js. The reason it’s not getting written to $_POST is because it’s not being submitted as a form at all. I’m not really that great with jQuery, but I think you might have to unbind the bp-default handler for input#aw-whats-new-submit, then reproduce that javascript in your own plugin, with additional code to grab the content of your track box and submit it to your custom function.