The basic steps to add a person to an existing group
To add someone to a WhatsApp group you already belong to, open the group chat, tap the group name at the top of the screen, scroll down to "Participants," and tap the plus icon next to "Add Participant." Search for the contact by name or phone number, select them, and confirm. The person will receive a notification that they've been added and can see all future messages from that moment forward.
On Android, the steps are nearly identical: open the group, tap the three dots in the top right, select "Group Info," tap "Add Participant," and choose the contact. On iPhone, tap the group name at the top, scroll to "Participants," and tap "Add Contact." Both platforms work the same way once you reach the add screen.
The person you add will not see messages sent before they joined the group. They'll only see what's posted after their name appears in the participant list. This is a built-in privacy boundary — WhatsApp doesn't retroactively share chat history with new members.
Key Takeaways
- You can only add someone to a group if you are already a member and have not been removed from the group admin list.
- The new member will see all messages sent after they join, but not any messages from before they were added.
- The person being added must have your phone number saved in their contacts, or you must know their exact phone number to search for them.
- Group admins can remove people from groups and change group settings, but any member can add new people unless the admin has restricted that permission.
When you don't have permission to add someone
If you try to add a participant and see a message saying you don't have permission, the group admin has restricted who can add new members. This is a setting the admin can turn on or off at any time. You'll need to ask the admin to add the person instead, or ask the admin to give you permission to add members yourself.
Some groups are set to "Only admins can add members." Others allow any participant to add people. If you're unsure which rule applies to your group, look at the group info screen — it will sometimes show who has permission to add members, though this varies by WhatsApp version.
What happens when you add someone who doesn't have WhatsApp yet
If you search for a contact and they don't appear in the add participant list, they either don't have WhatsApp installed, or WhatsApp doesn't recognize their phone number in your contacts. You can still add them by typing their phone number directly if you know it — but they won't receive the group invitation until they install WhatsApp and verify their account.
Once they do install WhatsApp and set up their account with that phone number, they'll see the group in their chat list and can start reading and sending messages. There's no separate "accept" step — joining happens automatically when their account is active.
Adding multiple people at once
WhatsApp doesn't have a built-in feature to add several people in one action. You have to add them one at a time by tapping the plus icon, searching for each person, and confirming. If you need to add many people to a new group, it's faster to create the group first and add people as you go, rather than creating an empty group and filling it later.
When you create a new group, WhatsApp lets you select multiple contacts before the group is created. This is the only time you can add more than one person in a single step. After the group exists, you're limited to adding one person per action.
Privacy and security considerations when adding people
Adding someone to a group shares your phone number with them, because they'll see you as a group member. If you want to add someone but don't want them to have your direct contact information, you cannot do this through WhatsApp groups — the group membership itself reveals who you are. Consider whether you're comfortable with that before adding someone.
The person you add will also see the phone numbers of everyone else in the group. If the group contains people who don't know each other, they'll all become visible to one another. There's no way to hide group membership or phone numbers once someone is added — it's an all-or-nothing visibility.
If you remove someone from a group later, they lose access to future messages but keep the ability to see everything they saw while they were a member. Removing someone doesn't erase their view of past conversations.
Removing someone from a group you manage
If you're a group admin, you can remove any member by opening the group info, finding their name in the participant list, tapping and holding on their name, and selecting "Remove." They'll receive a notification that they've been removed and will no longer see new messages. If they try to message the group, they'll see an error saying they're not a participant.
Regular members (non-admins) cannot remove other people from the group. Only admins can do this. If you need someone removed but you're not an admin, ask one of the admins to do it.
Frequently Asked Questions
Can someone see messages from before they were added to the group?
No. WhatsApp only shows new members the messages sent after they join. The chat history from before they were added is not visible to them, even if they ask an admin or another member to share it.
What if the person I want to add is not in my contacts?
You can still add them if you know their phone number. In the add participant screen, type the number directly instead of searching by name. Make sure you include the country code (for example, +1 for the United States).
Can I add someone to a group without them knowing?
No. They'll receive a notification that they've been added to the group and will see the group name, all members, and all new messages. There's no way to add someone silently or without their knowledge.
What if I'm not an admin but want to add someone?
You can add people unless the group admin has turned on the "Only admins can add members" setting. If that's on, ask an admin to add the person for you or to give you admin permissions.
Can I add someone back after removing them?
Yes. You can add them again the same way you added them the first time. They'll rejoin as a new member and won't see messages from their previous time in the group.