I get an error message: "A contact cannot belong to multiple groups. Please modify..."
If one or more of your contacts belong to more than one group, you may receive an error. Please follow these steps to resolve the issue:
- Go into your phone's address book.
- Find the contact listed in the error message.
- Go to the next contact.
- Remove that contact from all groups except one.
- Go back and try WhatsApp again.
- If it gives the same error, but with a different contact this time, repeat the steps above until WhatsApp works.
Need to add a contact? Here's how.
WhatsApp Support Team