This would take some code work, because neither bbPress or BuddyPress store this information. You would need to hook into ‘groups_edit_forum_post’ and the use bb_update_postmeta() and bb_get_postmeta() to save/retrieve the information. The following will get you started:
`my_update_forum_post_last_edited( $post_id ) {
global $bp;
do_action( ‘bbpress_init’ );
$post_id = (int) $post_id;
if ( empty( $post_id ) )
return;
bb_update_postmeta( $post_meta, ‘last_edited_date’, bp_core_current_time() );
bb_update_postmeta( $post_meta, ‘last_edited_user’, $bp->loggedin_user->id );
}
add_action( ‘groups_edit_forum_post’, ‘my_update_post_lasted_edited’ );
function my_display_forum_post_last_edited() {
do_action( ‘bbpress_init’ );
$last_edited_user = bb_get_postmeta( bp_get_the_topic_post_id(), ‘last_edited_user’ );
$last_edited_date = bb_get_postmeta( bp_get_the_topic_post_id(), ‘last_edited_date’ );
if ( empty( $last_edited_user ) || empty( $last_edited_date ) )
return;
echo ‘Last edited by ‘ . bp_core_get_user_display_name( $last_edited_user ) . ‘ on ‘ . bp_format_time( $last_edited_date ) . ‘ ‘;
}
add_action( ‘bp_group_forum_post_meta’, ‘my_display_forum_post_last_edited’ );`
“should get you started”
what else do I need to do?
Try it. I should do everything for you. “Get you started” means just that. It will get you started, and then you can tweak it to your needs.
do I put in my topic.php
`<?php my_update_forum_post_last_edited( my_display_forum_post_last_edited() );`
Because the code by itself does not do anything
No, the code goes in your functions.php file. You won’t need to make any other changes.
You’ll also need to edit a post before anything will show.
Also, I haven’t tested any of this, so you may need to play around a little more to make it functional.
i put it in bp-custom.php which is the same thing, and it does nothing.
-Side Note, I am running TinyMCE editors on my forum texareas. Not sure if that could be breaking it.
Yeah, that’s because I put in the wrong variable so nothing was saving. Replace the first function with this, and then see what happens. You’ll need to edit a post again.
`my_update_forum_post_last_edited( $post_id ) {
global $bp;
do_action( ‘bbpress_init’ );
$post_id = (int) $post_id;
if ( empty( $post_id ) )
return;
bb_update_postmeta( $post_id, ‘last_edited_date’, bp_core_current_time() );
bb_update_postmeta( $post_id, ‘last_edited_user’, $bp->loggedin_user->id );
}
add_action( ‘groups_edit_forum_post’, ‘my_update_post_lasted_edited’ );`
Still nothing appeared. 
I don’t know how to do code at all, so thanks for helping! 
Apparently I have an issue today with fat fingers or bad copy/paste-itus. Try this:
`my_update_forum_post_last_edited( $post_id ) {
global $bp;
do_action( ‘bbpress_init’ );
$post_id = (int) $post_id;
if ( empty( $post_id ) )
return;
bb_update_postmeta( $post_id, ‘last_edited_date’, bp_core_current_time() );
bb_update_postmeta( $post_id, ‘last_edited_user’, $bp->loggedin_user->id );
}
add_action( ‘groups_edit_forum_post’, ‘my_update_forum_post_last_edited’ );`
No avail. Still nothing appears. 
??:
Where is the text supposed to appear?
Theoretically it should show up at the top of the post that was edited, right beside the #. Are you using the bp-default theme?
No. I have a very weird forum layout. It’s actually so modified that the “#” is next to the topic Meta.
Well that could be the reason. Do you have `do_action( ‘bp_group_forum_post_meta’ );` anywhere in your template in the meta section? My guess is no, which is why nothing is displaying. You can try adding `my_display_forum_post_last_edited()` where you’d like the “Last edited…” text to appear.
Ok, looks good, but the date is wrong.
It says it was edited on “December 31, 1969” 😆
Try changing `bp_format_time( $last_edited_date )` to `bp_format_time( strtotime( $last_edited_date ) )`
The time is still an hour behind my local time.
