Adding a person to an existing text conversation
The steps depend on whether you are using your phone's built-in messaging app or a third-party app like WhatsApp, iMessage, or Signal. On most phones, you open the conversation, tap the group name or details at the top, and select an option to add members. The exact wording and button location changes between Android and iPhone, and between apps.
The person you add will see the full conversation history by default on iMessage and most Android apps. WhatsApp and Signal show new members only the messages sent after they join, not earlier ones. This matters if the conversation contains important context or decisions the new person needs to know about.
Key Takeaways
- On iPhone with iMessage, open the conversation, tap the group name at the top, then tap "Add Contact" or the plus icon to add members.
- On Android, open the conversation, tap the three dots or group name, find "Add member" or "Add contact", and select the person from your contacts.
- WhatsApp and Signal only show new members messages sent after they join, while iMessage and standard SMS show the full history.
- You can only add people to a group text if you created the group or if the group settings allow any member to add others.
- Some apps let you add someone by phone number alone, while others require them to be in your contacts first.
Adding someone on iPhone with iMessage
Open the conversation you want to add someone to. Tap the group name or the circle with initials at the very top of the screen. This opens the group details page.
Look for a button that says "Add Contact", a plus sign, or an icon that looks like a person with a plus. Tap it. Your phone will show your contacts list. Find the person you want to add and tap their name. Some iPhones also let you type their name to search faster.
Once you tap their name, they are added when ready. Everyone in the group will see a message saying "[Your Name] added [New Person's Name]" in the conversation thread.
Adding someone on Android with standard SMS or Google Messages
Open the conversation. Tap the three vertical dots (menu icon) at the top right, or tap the group name if it appears at the top. Look for an option that says "Add member", "Add contact", "Add participant", or sometimes just "Add".
Tap that option. Your phone will open your contacts. Select the person you want to add. On some Android phones, you can add multiple people at once by tapping each name before confirming.
The new member will appear in the group, and a system message will notify everyone that someone was added. The timing of when they see earlier messages depends on which app you are using.
Adding someone to WhatsApp or Signal groups
Open the group conversation. Tap the group name at the top of the screen. This opens the group info page, where you will see a list of current members.
Look for "Add member", "Add participant", or a plus icon near the member list. Tap it and select the person from your contacts. You can usually add one person at a time, though some versions let you select multiple contacts before confirming.
The new member will be added, and the group will show a notification that they joined. Unlike iMessage, they will only see messages sent after they were added, not the conversation history before that point.
When you cannot add someone to a group
Some groups have settings that prevent members from adding new people. Only the group creator or an admin can add members in these cases. If you try to add someone and see an error or no add option appears, ask whoever created the group to add them instead.
On some apps, you also cannot add someone unless they are already in your contacts. If you get an error, save their phone number to your contacts first, then try again.
If the group was created with a setting that locks membership, you may need to ask the creator to change the group settings before you can add anyone new.
What the new person sees when they join
On iMessage and standard Android SMS, the new member can see all previous messages in the conversation. This is useful if decisions were made or important information was shared before they joined.
On WhatsApp and Signal, new members see only messages sent after they were added. If the group has been discussing something for weeks, they will not see that history. You may need to catch them up manually or share a summary of what they missed.
Some group chats have pinned messages or a description that explains the group's purpose. New members should check for these to understand the context faster.
Removing someone from a group if you make a mistake
If you add the wrong person, you can remove them the same way you added them. Open the group details, find the member list, tap and hold (or long-press) the person's name, and select "Remove" or "Delete". On some apps, you tap a minus sign or an X next to their name.
Everyone in the group will see a notification that the person was removed. The removed person will no longer receive messages sent to the group, though they may still see the conversation history depending on the app.
Frequently Asked Questions
Can someone see messages from before they were added to the group?
It depends on the app. iMessage and standard SMS show new members the full conversation history. WhatsApp and Signal show only messages sent after they joined. Check your app's settings or ask the group creator if you are unsure which behavior applies to your group.
What if the person I want to add is not in my contacts?
Most apps require the person to be in your contacts before you can add them to a group. Save their phone number or email address to your contacts first, then open the group and try adding them again. Some apps let you type a phone number directly instead.
Can I add someone to a group text if I did not create it?
Only if the group settings allow it. If you see no add option or get an error, the group creator has restricted who can add members. Ask the creator to add the person for you or to change the group settings.
Will the new person get notified that they were added?
Yes. The group will show a system message saying they were added, and they will receive a notification on their phone. They will see this message in the conversation thread along with everyone else.
Can I add someone to a one-on-one text conversation?
No. A one-on-one text is between two people only. To add a third person, you need to create a new group conversation and add all three members to it. The original two-person conversation will remain separate.