Add notice that friend modification APIs don't impact the local platform or Epic Games

Author: hach-que

docs/ossv1/friends/blocked_players.mdx

@@ -22,6 +22,12 @@ In future, we intend to automatically handle the following scenarios for you:
 - Automatically rejecting friend invitations from blocked players.
   :::
 
+:::warning
+APIs for modifying the friends list only impact the cross-platform friends database and will not affect the local platform or Epic Games friends list. This includes actions such as sending and receiving invites, blocking and unblocking players and modifying recent players.
+
+It is not possible to support modifying the local platform's friends list or Epic Games friends list programmatically, as the platform SDKs and EOS SDK do not expose this functionality.
+:::
+
 ## Getting the blocked players list
 
 <Tabs lazy groupId="code-format" defaultValue="c++" values={[ { label: 'C++', value: 'c++' }, { label: 'Blueprints', value: 'blueprints' } ]}>

docs/ossv1/friends/blocked_players_manage.mdx

@@ -11,6 +11,12 @@ EOS Online Framework provides the "blocked players" functionality of the friends
 
 Refer to [Read the blocked players list](blocked_players.mdx) for more information on how the blocked players list works.
 
+:::warning
+APIs for modifying the friends list only impact the cross-platform friends database and will not affect the local platform or Epic Games friends list. This includes actions such as sending and receiving invites, blocking and unblocking players and modifying recent players.
+
+It is not possible to support modifying the local platform's friends list or Epic Games friends list programmatically, as the platform SDKs and EOS SDK do not expose this functionality.
+:::
+
 ## Blocking another player
 
 <Tabs lazy groupId="code-format" defaultValue="c++" values={[ { label: 'C++', value: 'c++' }, { label: 'Blueprints', value: 'blueprints' } ]}>

docs/ossv1/friends/deleting.mdx

@@ -13,6 +13,12 @@ A user might want to delete a friend that they previously added to their friends
 You can't delete friends if they're friends from the local platform (such as Steam). To know if you can delete a friend from the friends list, check the `deletable` user attribute. It will be `true` if the friend can be deleted.
 :::
 
+:::warning
+APIs for modifying the friends list only impact the cross-platform friends database and will not affect the local platform or Epic Games friends list. This includes actions such as sending and receiving invites, blocking and unblocking players and modifying recent players.
+
+It is not possible to support modifying the local platform's friends list or Epic Games friends list programmatically, as the platform SDKs and EOS SDK do not expose this functionality.
+:::
+
 ## Deleting a friend from the friends list
 
 <Tabs lazy groupId="code-format" defaultValue="c++" values={[ { label: 'C++', value: 'c++' }, { label: 'Blueprints', value: 'blueprints' } ]}>

docs/ossv1/friends/invites.mdx

@@ -15,6 +15,12 @@ In order for a friend invite to be sent, both the sender and receiver need to be
 
 If you send a friend invite to someone, and they're not currently online, the friend invite will be stored as a "pending invite" in Player Data Storage. The plugin automatically retries every 10 minutes to send the invite again, and will resume retrying to send it even across game launches.
 
+:::warning
+APIs for modifying the friends list only impact the cross-platform friends database and will not affect the local platform or Epic Games friends list. This includes actions such as sending and receiving invites, blocking and unblocking players and modifying recent players.
+
+It is not possible to support modifying the local platform's friends list or Epic Games friends list programmatically, as the platform SDKs and EOS SDK do not expose this functionality.
+:::
+
 ## Sending an invite to another player
 
 <Tabs lazy groupId="code-format" defaultValue="c++" values={[ { label: 'C++', value: 'c++' }, { label: 'Blueprints', value: 'blueprints' } ]}>

docs/ossv1/friends/recent_players.mdx

@@ -13,6 +13,12 @@ You don't need to manually add recently seen players; the plugin will check what
 
 You no longer need to call `QueryRecentPlayers` - the plugin automatically caches the recent players during login and keeps the list of recent players up-to-date.
 
+:::warning
+APIs for modifying the friends list only impact the cross-platform friends database and will not affect the local platform or Epic Games friends list. This includes actions such as sending and receiving invites, blocking and unblocking players and modifying recent players.
+
+It is not possible to support modifying the local platform's friends list or Epic Games friends list programmatically, as the platform SDKs and EOS SDK do not expose this functionality.
+:::
+
 ## Getting the recent players list
 
 <Tabs lazy groupId="code-format" defaultValue="c++" values={[ { label: 'C++', value: 'c++' }, { label: 'Blueprints', value: 'blueprints' } ]}>

docs/systems/friends.md

@@ -10,6 +10,12 @@ The friend system provides a common API for reading and managing cross-platform
 The C++ APIs described in this section are only available in the Paid Edition, as the Free Edition does not ship with any C++ headers.
 :::
 
+:::warning
+APIs for modifying the friends list only impact the cross-platform friends database and will not affect the local platform or Epic Games friends list. This includes actions such as sending and receiving invites, blocking and unblocking players and modifying recent players.
+
+It is not possible to support modifying the local platform's friends list or Epic Games friends list programmatically, as the platform SDKs and EOS SDK do not expose this functionality.
+:::
+
 ## Updating your game module dependencies
 
 Before you can access the friend system, you need to update your game module's `.Build.cs` file to depend on the `RedpointEOSFriends` module, like so: