Remove post content from buddypress activity [closed]

You should state which versions of WP and BP you’re using.

This should change the content part of what is recorded.
You can put it in your theme’s functions.php

add_filter( 'bp_blogs_activity_new_post_content', 'record_post_activity_content', 1, 3 );
function record_post_activity_content($activity_content, $post, $post_permalink ){
    if( $post->post_type == 'post' ) {
        $activity_content="your custom field";
    }
        return $activity_content;
}