invitations

Hi, MKnoeller.

I don't see why not. 

The only geographical restrictions are laid out here: https://support.zoom.us/hc/en-us/articles/203806119-Restricted-countries-or-regions

Happy meetings!!

Ask him to manually type the meeting ID and passcode into the Zoom app and see what happens.

Sometimes it can be from something as silly as an antivirus.

If he keeps being unable to join, might be worth to contact tech support.

Good luck!

Kein Problem @MKnoeller ! 

I would suggest also checking what data centers are available for your meetings. If the China datacenters are disabled for your meetings, that could be causing your participant in China issues with joining.