I'm creating a VCF file on my website. It works nicely with the export, and most data are being imported, but the group is not created or used on Android.

I've tried using `CATEGORIES` and `ORG`. I also tried to look at `KIND` and `MEMBER`, but couldn't figure out how to use those, seems to refer to URI's and not a group name in the phone book. If I export a contact, it doesn't fill in the group in the contact.

Which VCF field do I use to specify a group in Android?