Attempt to send a friend request
I have encountered such a malfunction that when trying to send a friend request to a person who has a limited number of added friends, the request is not sent, and no error pops up in front of the screen stating that the request could not be sent due to the fact that the user has a limited number of friends. I suggest adding this notification, which should say that the request could not be sent for this specific reason.
Your suggestion to add a notification for when a friend request cannot be sent due to a limited number of friends on the recipient's account is a good one. This kind of notification would improve the user experience by providing clarity and avoiding confusion. By letting the user know that the issue is with the recipient's account settings, they can avoid repeatedly attempting to send the request and instead consider other ways of connecting with the person, such as through a message or through mutual friends.
It's also possible that the platform you're using has already received similar suggestions and is working on implementing them. In any case, I would recommend reaching out to the support team of the platform to bring this issue to their attention and inquire about any plans they have for addressing it.
Regards: Minecraft Bedrock Edition1