Why are my friends unable to join my party in Fortnite on Xbox?

To allow your friends to join your Fortnite party when you are playing on Xbox, please make sure that invites are allowed in your Xbox permission panel.

You can access the necessary settings on your Xbox device by following these steps:

1. Open "Settings"

2. Select "Account" > "Privacy & online safety" > "Xbox privacy" > "View details & customize" > "Communication & multiplayer"

3. Here, ensure that "Others can communicate with voice, text, or invites" is NOT set to "Block"