Groups cannot be used for commercial/for-profit purposes.
I want to send a message to someone I have met through MEMBERS Groups.
If you register that person to your Friends List on your My Page, you will be able to send them a message. If you do not have a My Page, you will need to create one first.
My question isn't answered here in the Help Center.
If your problem cannot be solved based on the information provided here, please contact our Information Center.