Open this in MPGolf
This link is for the MPGolf app on your phone.
You've been invited to a game
Open MPGolf, tap Have a code? and type:
If MPGolf is on this phone
Go back to the message and tap the link again, and choose MPGolf if your phone asks what to open it with.
If it isn't
Ask whoever sent you this how to get MPGolf, then come back to the link.