The three ways to add a contact

You add someone to WhatsApp by finding their phone number in your phone's contacts, scanning their QR code, or asking them to share a link. WhatsApp does not have usernames or handles — it uses your actual phone number as your identifier, so you need that number to add someone. The person you are adding does not have to accept or confirm anything; once you add their number, you can message them when ready if they have WhatsApp installed.

Which method you use depends on where you are and what information you have. If you already have someone's phone number saved in your phone, the easiest route is the first one. If you are meeting someone in person or on a video call, a QR code is fastest. If you are adding someone remotely and do not have their number yet, a share link works when they send it to you through another app.

Key Takeaways

  • WhatsApp uses your phone number as your contact identifier, so you need someone's actual phone number to add them — there are no usernames or handles.
  • If the person is already in your phone's contacts, WhatsApp will show them in your chat list automatically once they have WhatsApp installed.
  • You can scan someone's WhatsApp QR code with your phone's camera to add them without typing their number.
  • A person can send you a link that adds them to your WhatsApp when you tap it, useful when you do not have their number yet.
  • The person you add does not need to accept or confirm — you can message them right away once they are in your contacts.

Adding someone from your phone's contacts

If you already have someone's phone number saved in your phone, WhatsApp finds them automatically. Open WhatsApp, tap the chat icon (the speech bubble at the bottom right on iPhone, or the pencil icon at the top right on Android), and look through the list. Anyone who has WhatsApp installed will appear with a green dot or a WhatsApp icon next to their name. Tap their name to start a conversation.

If you do not see them in the list, they either do not have WhatsApp installed yet, or their number is not saved in your phone's contacts. To add them manually, tap the new chat button again, then tap "New Contact" or the plus icon. Type their name and phone number (including the country code), save it to your phone, and WhatsApp will add them to your chat list once the contact is saved.

Scanning a QR code to add someone

Every WhatsApp account has a unique QR code. To scan someone's code, open WhatsApp, tap the three dots at the top right (Android) or swipe left on the chat list (iPhone), and select "Settings" or "New Chat". Look for an option that says "Scan QR Code" or shows a camera icon. Point your phone's camera at their QR code, and WhatsApp will add them automatically.

To show someone your QR code so they can add you, go to Settings, tap your profile name at the top, and select "QR Code". You can take a screenshot of it or let them point their camera at your screen. This method is fastest when you are in the same room or on a video call, because neither of you has to type or share a phone number.

Using a share link to add someone

A person can create a link that adds them to your WhatsApp when you tap it. They go to Settings, tap their profile name, select "QR Code", and tap the three dots to choose "Share Link". They can then send that link to you through email, text, or another messaging app. When you tap the link on your phone, WhatsApp opens and adds them to your contacts automatically.

This method is useful when you are coordinating with someone online and do not have their phone number. They send the link, you tap it, and you can message them right away. The link works only once per person, so if they send it to multiple people, each person gets their own unique link.

What happens after you add someone

Once you add a contact, they appear in your chat list. You can message them when ready — they do not have to accept or confirm the addition. If they have not installed WhatsApp yet, your message will wait in their chat until they do. If they have WhatsApp but have blocked you, your messages will not go through, and you will not see a delivery receipt.

The person you added will not be notified that you added them unless you send them a message. They will see your message appear in their chat list, and they can reply or block you from there. If they have their privacy settings turned on, they may not see your profile picture or last seen time until they add you back.

Adding someone who is not in your contacts yet

If you have someone's phone number but it is not saved in your phone, you can add them directly in WhatsApp. Open WhatsApp, tap the new chat button, and select "New Contact". Type their name and phone number with the country code (for example, +1 for the United States, +44 for the United Kingdom). Save the contact to your phone, and WhatsApp will add them to your chat list.

Alternatively, you can type their number directly into WhatsApp without saving it to your phone first. Tap the new chat button, select "Enter a Phone Number", and type the full number with the country code. WhatsApp will open a chat with that number, and you can message them right away. If they have WhatsApp, the chat will show their profile picture and name once they respond.

Troubleshooting when someone does not appear

If you added someone but they do not appear in your chat list, check that their phone number is correct and includes the country code. WhatsApp is case-sensitive about numbers, so +1-555-0123 and +15550123 are the same contact, but WhatsApp will not recognize them as the same person if you type them differently. Delete the contact and re-add it with the correct format.

If the number is correct but they still do not appear, they may not have WhatsApp installed. WhatsApp only shows contacts who have the app. You can still message them by typing their number into the new chat field, and the message will wait for them if they install WhatsApp later. If you have blocked them or they have blocked you, they will not appear in your chat list either.

Frequently Asked Questions

Can I add someone on WhatsApp without their phone number?

No — WhatsApp requires a phone number to add someone. You can use a QR code or share link to avoid typing the number, but the person must have a WhatsApp account linked to a phone number. There are no usernames or handles in WhatsApp.

Will the person know when I add them?

They will not be notified that you added them unless you send a message. Once you message them, they will see your name and profile picture in their chat list and can choose to reply or block you.

What if I add someone by mistake?

You can delete the chat by swiping left on their name (iPhone) or long-pressing it (Android) and selecting delete. This removes them from your chat list but does not block them or notify them. If you want to prevent them from messaging you, you can block them separately in their contact details.

Can I add someone if they have WhatsApp but a different phone number?

Yes — you can add them with their new number the same way you would add anyone else. If they had WhatsApp on an old number, that old chat will stay in your list under the old number unless you delete it. The new number will be a separate contact.

What does it mean if someone appears in my contacts but not in WhatsApp?

It means they have not installed WhatsApp yet, or they installed it on a different phone number. You can still message them by opening a chat with their number, and the message will wait for them if they install the app later.