How does oppo mobile phone send short messages in groups? These numbers are not pre-archived in your contacts.

If you want to send short messages in groups, please refer to the following path:

When entering a message, editing a message or sending a message, click "+"-Group (or contact person)-select the group (or contact person) that needs to send a message on the right side of the recipient input box, enter the message content, or directly enter the phone number in the recipient input box and click Send.

Note: You can join 200 contacts to send messages at a time ~