Here's what I was able to find on Google -
If Facebook is repeatedly canceling your friend requests with the message that you don't know the person, it could be due to several reasons:
1. **Privacy Settings**: The person you're trying to friend might have strict privacy settings that prevent people who aren't already friends from sending them friend requests. In such cases, you won't be able to send a request until they change their settings.
2. **Previous Requests**: If you've sent multiple friend requests to the same person, and those requests were ignored or declined, Facebook may restrict your ability to send further requests to people you don't have mutual friends with.
3. **Unfamiliar Name or Profile**: If the person you're trying to friend has an unfamiliar or fake-sounding name, or if their profile doesn't have much public information, Facebook might interpret your request as suspicious.
4. **Algorithmic Errors**: Sometimes, Facebook's algorithms can make mistakes, and legitimate friend requests may get flagged incorrectly.
To address this issue, you can try the following:
1. **Send a Message**: If you genuinely know the person and believe the rejection is a mistake, try sending them a message through Facebook Messenger to explain your intent and request they accept your friend request.
2. **Mutual Friends**: If you have mutual friends with the person, consider asking one of your mutual friends to introduce you or vouch for you.
3. **Check Privacy Settings**: Encourage the person to review their privacy settings to ensure they are open to receiving friend requests.
4. **Appeal to Facebook Support**: If you believe your account is facing a technical issue, you can reach out to Facebook Support for assistance.
Remember to respect people's preferences and privacy on social media platforms. If someone declines your friend request or prefers not to accept it, it's important to respect their decision.
