This answer is for Buddypress 1.7. No idea how much of it, if any, still applies to the current version (2.8+)
Here’s an as of yet incomplete listing of what files go where. I’ll update it as I get more into theming buddypress sites.
The official ‘hints’ page can be found here..
https://codex.buddypress.org/themes/theme-compatibility-1-7/template-hierarchy/
If you would prefer a basic guide to familiarise you with the template files and how you can make them work for you in your chosen theme you can read this..
https://codex.buddypress.org/themes/theme-compatibility-1-7/a-quick-look-at-1-7-theme-compatibility/
Note: There are a couple of templates where the php isn’t closed and if you’re not using a buddypress.php base template you will need to close them if you’re including a wordpress header and footer on those pages.
Advisory: It’s been noted by a buddypress developer that this is not the standard way to customize buddypress to fit with your wordpress theme. After downvoting (I assume), he failed to provide ‘proper’ alternatives to this answer.
Profiles
profile -> edit
from bp-legacy
/bp-legacy/buddypress/members/single/profile/edit.php
to your theme
/yourtheme/buddypress/members/single/index-action-edit.php
profile -> change profile photo
your.website/members/admin/profile/change-avatar/
/bp-legacy/buddypress/members/single/profile/change-avatar.php
/yourtheme/buddypress/members/single/index-action-change-avatar.php
profile -> change cover image
your.website/members/admin/profile/change-cover-image/
/bp-legacy/buddypress/members/single/profile/change-cover-image.php
/yourtheme/buddypress/members/single/index-action-change-cover-image.php
single profile page
your.website/members/MEMBER-NAME/
/bp-legacy/buddypress/members/single/home.php
/yourtheme/buddypress/members/single/index.php
Notifications
notifications base template (notifications.php)
/bp-legacy/buddypress/members/single/notifications.php
/yourtheme/buddypress/members/single/index-action-notifications.php
will call the loop..
notifications loop (notifications-loop.php)
/bp-legacy/buddypress/members/single/notifications/notifications-loop.php
/yourtheme/buddypress/members/single/notifications/notifications-loop.php
which calls either unread or read..
notifications -> unread
your.website/members/admin/notifications/
/bp-legacy/buddypress/members/single/notifications/unread.php
/yourtheme/buddypress/members/single/notifications/unread.php
notifications -> read
your.website/members/admin/notifications/read/
/bp-legacy/buddypress/members/single/notifications/read.php
/yourtheme/buddypress/members/single/notifications/read.php
or if no notifications exist..
no notifications feedback-no-notifications.php
/bp-legacy/buddypress/members/single/notifications/feedback-no-notifications.php
/yourtheme/buddypress/members/single/notifications/feedback-no-notifications.php
Messages
messages -> inbox & messages -> sent
your.website/members/admin/messages/
your.website/members/admin/messages/sentbox/
*php is unclosed in template file, has to be closed if following this style of theming.
/bp-legacy/buddypress/members/single/messages.php
/yourtheme/buddypress/members/single/index-component-messages.php
switch – if is inbox or sentbox calls messages-loop.php
messages loop
/bp-legacy/buddypress/members/single/messages/messages-loop.php
/yourtheme/buddypress/members/single/messages/messages-loop.php
calls message.php to view each individual message thread
message thread
/bp-legacy/buddypress/members/single/messages/message.php
/yourtheme/buddypress/members/single/messages/message.php
messages -> inbox -> ‘view message’ the message thread or conversation
/bp-legacy/buddypress/members/single/messages/single/single.php
/yourtheme/buddypress/members/single/messages/single.php
alternatively you can rename it and place it here (not sure why i had this set up originally)
/yourtheme/buddypress/members/single/index-action-view.php
individual message (from so and so at this time)
called from single message page, single.php/index-action-view.php ..
<?php bp_get_template_part( 'members/single/messages/message' ); ?>
.
/bp-legacy/buddypress/members/single/messages/message.php
/yourtheme/buddypress/members/single/messages/message.php
messages -> starred
your.website/members/admin/messages/starred/
seems to be the same as inbox.sentbox
messages -> compose
called from index-component-messages.php switch case:compose
your.website/members/test-subscriber/messages/compose/
/bp-legacy/buddypress/members/single/messages/compose.php
/yourtheme/buddypress/members/single/messages/compose.php
messages -> all member notices (viewable by admin only)
your.website/members/admin/messages/notices/
calls notices-loop.php
<?php bp_get_template_part( 'members/single/messages/notices-loop' ); ?>
needs doing
Friends
friends -> friendships
your.website/members/admin/friends/
*php is unclosed in template file, has to be closed if following this style of theming.
/bp-legacy/buddypress/members/single/friends.php
/yourtheme/buddypress/members/single/index-component-friends.php
friends -> pending requests
your.website/members/admin/friends/requests/
/bp-legacy/buddypress/members/single/friends/requests.php
/yourtheme/buddypress/members/single/index-action-requests.php
Settings
note – there is probably a main template that should call each of these from the original bp-legacy paths. something like a settings.php, ile play around with it and update later.
settings -> general
your.website/members/admin/settings/
/bp-legacy/buddypress/members/single/settings/general.php
/yourtheme/buddypress/members/single/index-action-general.php
settings -> general -> email (noticiations by email)
your.website/members/admin/settings/notifications/
/bp-legacy/buddypress/members/single/settings/notifications.php
/yourtheme/buddypress/members/single/index-action-notifications.php
settings -> general -> profile visibility
your.website/members/admin/settings/profile/
/bp-legacy/buddypress/members/single/settings/profile.php
/yourtheme/buddypress/members/single/index-action-profile.php
settings -> general -> delete account
*note – you cant see this page as an admin (redirects if u try), its not even listed in the settings menu. log in as a test account (non-admin) to view it.
your.website/members/test-subscriber/settings/delete-account/
/bp-legacy/buddypress/members/single/settings/delete-account.php
/yourtheme/buddypress/members/single/index-action-delete-account.php