Video summary
Kim raises a frustrating issue regarding her family group chat, which has inexplicably split into multiple threads with identical names despite attempts to merge them or standardize contact information. She explains that the problem began after she and her sisters tried to consolidate their identities by removing email addresses in favor of phone numbers, yet the duplication persisted. This situation is exacerbated by the fact that there is no official way to merge existing message threads, forcing users to abandon old groups and start new ones with different names as a temporary workaround.
The core cause of this behavior lies in how Apple Messages handles user identities across different devices. When a single person is represented by different addresses—such as a phone number on one device and an email address on another—the system treats them as distinct individuals, causing the conversation to fork into separate threads. This issue is further complicated by end-to-end encryption protocols that rely on public keys tied to specific contact identifiers; because these keys are unique to each address combination, the software cannot logically combine conversations that appear to involve different participants based on their login credentials.
Complications arise even when mixing devices or operating systems within the same group chat. The transcript notes that while newer versions of macOS and iOS can sometimes intelligently merge threads if all users are on compatible Apple devices with consistent settings, the presence of Android users often disrupts this process, leading to messages failing to send or groups splitting unexpectedly. One specific example involves a family reunion chat where certain members could not be added to the group at all, highlighting the unpredictable nature of how different platforms and encryption standards interact during group formation.
Ultimately, the consensus is that this duplication is an unavoidable quirk rather than user error, stemming from deep-seated decisions made years ago regarding encryption architecture. Since Apple does not provide a feature to merge these split threads, users must accept that maintaining a single, unified group requires strict consistency in how every member's identity is stored across all their devices. While starting a new chat with a unique name is the current best practice to avoid confusion, there remains no guarantee that the issue will not recur, leaving families and friend groups to constantly manage the risk of their conversations fragmenting again.
Read the full video transcript
Kim has a question for you, Pete.
>> Yeah.
I've got an answer for Kim.
>> Great, [laughter]
cuz I have this question, too.
Kim says, "My sisters and I have a
shared conversation in messages, a group
chat, uh that we named sibs a few years
ago. Recently, we noticed that there are
suddenly two or even three groups with
the same name, and the message threads
are not the same in any of them. So far,
all our attempts to get back to just one
group have only exacerbated the problem.
There is evidently no way to merge
message threads. We attempted to
identify which is which by changing the
names, and that also doesn't seem to
work. Name changes don't seem to
propagate reliably. I was set to receive
messages from my phone number and from
several email addresses, so I removed
the email addresses so I can now only
get messages at my phone number. I was
only sending from my phone number. One
of my sisters did the same as Google
indicated this might be the cause of
multiplication of groups. But that
didn't help us settle on this uh one of
the same name groups going forward. This
is a shaking my fist moment. Yes,
absolutely. Apple, how is it possible to
have more than one group chat with the
same name? Our new strategy is to
abandon this first group and create a
new one with a completely different
name. I expect this will work to solve
the problem going forward, but it's not
a satisfactory solution since apparently
there is no guarantee this won't happen
again. Any clues or suggestions?
I see this, too.
>> Yeah, yeah, and boy is it frustrating,
huh?
>> Mhm.
>> Uh and I've I've searched through the
Apple discussions and looked for this,
and guess what? This is a known Apple
Messages quirk.
Not something you did wrong. Um
well, at least not intentionally. Uh but
the only workaround seems to be exactly
what you've done, which is to uh start a
new group with a new name, maybe sister
sibs or something like that, but uh
uh and and abandon the others. But the
thing is it seems to be that if one
person is using an iPhone, an iPad, and
a Mac, messages will fork to the thread
if those devices aren't all set to start
new conversations from the exact same
address or the exact same phone number
each time. So, uh it it
it'll fork off thinking that there's a
new person that's been added to the
group. Um
and so you you have to all make sure
that you're all represented the exactly
exactly the same way on each of the
devices from which you might be sending
it.
And so, uh I think I wrote down in the
in the answer,
uh if Jane is stored as a phone number
on one device and an email on another
device, messages can treat her like two
different identities
in that same group and then then it
splits, and so that isn't pretty. Uh
we'll put a link in the show notes to
the Apple discussions about this, but uh
my honest take is there's no guarantee
this won't happen again.
So, the way to keep it, you know, if if
you have multiple send from addresses,
so the the way to do it is keep one
contact in messages uh and then move on
it you know, at least for that group. Uh
we've been pretty lucky with the one for
our family at this point, but I imagine
I'm waiting for the split to happen at
any time.
>> We wound up with a split with our family
group when Skye moved to Italy because
our group was
based on all of our phone numbers, and
she
her phone number is no longer an
iMessage number. She saved her number,
and then we just ported it to a Google
Voice number so she can keep it forever.
Um
and and probably use it if and when she
moves back to the states here. But um
but yeah, it it it we definitely went
through it. And and you're right, it's
it's all about which
like not which person, but which address
is being used as the group and it it's
it's a whole thing. But you said
something Pete that I just that really
kind of puts it puts it all all
together. I think basically what you
said was this is when your group chat
tells you to fork off.
>> [laughter]
>> I I I may have said that inadvertently,
but you know.
>> [gasps]
>> Yeah, so frustrating and it would be
nice look, I'm not a coder. I can see
where the nightmares come in
but but it would be nice to be able to
merge
groups. To go look, these two groups are
the same people. Put them Put them all
together, won't you? And uh
um
Apple sees a need to keep that separate.
And and I I can kind of see the need to
keep it separate.
>> No, it it it's it's a I I don't think
it's an intentional like we want to we
want people to we want people to fork
off. Um we I think it's a byproduct of
the
uh end-to-end encryption that is all
done with public keys and those public
keys are based on your right like so I
think it's it's probably based on a
decision they made you know, a decade
plus ago about how this was going to
work and it's one of those things it's
like, well
>> That encryption is the
is the key so to speak. You're
absolutely right. There's no doubt that
because now you Yeah.
>> I'm sure that's it.
I'm sure that's it.
>> That makes perfect sense why you can't
merge.
>> Or why they why they resist merge. And
where this gets really fun folks is when
you have Android people mixed in with
your group chat. That might I have
multiple That is one place where Apple's
devices will merge a group chat without
telling you. And it's something that
Tahoe does better than Sequoia. So Mac
OS 26 does better than whatever the heck
we called it before.
Um
it is is uh cuz I cuz this machine used
to be on Sequoia here. And
I would get multiple like messages in
you know, if there was a chatter
happening in one of my band groups. Like
it I would see multiple threads on this
computer, but my iPhone, all my other
Macs which are on 26,
wouldn't see they would it would like
intelligently merge them. And now that
I'm on Tahoe up here, the same thing
happens. So.
>> Interesting. Yeah. And I had one last
fall. I had a
I was
doing the reunion for my old squadron.
Yeah. So, I had like 35 people in this
chat. Yeah. And the weirdest part of it
was there were two people I could not
add to the chat no matter what. I could
chat with them individually all day
long, but I could not get them into that
group chat. One was an iPhone and one
was an Android. And no matter what I
did, I could if as soon as I put them in
there, it wouldn't send to anybody.
>> Love it.
>> Okay.
>> Love it.