You cannot join a group on your own – a current member of the group will need to invite you. You can ask them to add your email address or phone number from the group settings, or to share a group invite link with you via "Invite via link" in the group settings.
If someone has invited you but the group is not showing up in your account, it's usually because they invited you with a different email address or phone number than the one on your account. To resolve this, open the invite link you received and follow the prompts to log into your existing account. Splitwise will then add the group to your account.
If you did not receive an invite at all, your friend may have entered an incorrect email address or phone number. Ask them to go to the group settings and double-check that the details they entered match your account.
