Once you've sent out all your Parent invites, make sure you check in a few days later to make sure that all of the children in your class are connected to at least one parent. You may need to send some parents a friendly reminder (I'd include the class invite link) to remind them.
You can generate an email invite in many of the home languages our parents speak. This can be sent as an email, or as a hard copy print out with QR code, if you suspect that certain parents may struggle with using digital technologies!
You can check to see if there are any parents who need a helpful nudge in the settings: