Messaging to multiple contacts
Why can't I send sms to multiple contacts in one go?
iPhone 12 mini, iOS 14
Apple’s Worldwide Developers Conference to kick off June 10 at 10 a.m. PDT with Keynote address
The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.
The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.
Why can't I send sms to multiple contacts in one go?
iPhone 12 mini, iOS 14
Group SMS
These messages also appear in green text bubbles and go through your carrier. Group SMS messages don’t support multimedia attachments, like photos or videos. All responses in a Group SMS are sent as individual text messages and the recipients can’t see the other responses from the group.
Learn how to foward SMS/MMS text messages across your devices, like from an iPad to a Mac.
Send a group text message on your iPhone, iPad, or iPod touch - Apple Support (CA)
Group SMS
These messages also appear in green text bubbles and go through your carrier. Group SMS messages don’t support multimedia attachments, like photos or videos. All responses in a Group SMS are sent as individual text messages and the recipients can’t see the other responses from the group.
Learn how to foward SMS/MMS text messages across your devices, like from an iPad to a Mac.
Send a group text message on your iPhone, iPad, or iPod touch - Apple Support (CA)
I tried resetting the network settings --
Settings - General - Reset - Reset Network Settings
It worked! Problem solved.
Messaging to multiple contacts