You can stop receiving messages, calls and status updates from certain contacts by blocking them. You can also report them if you think they are sending problematic content or spam.

Block a contact

1. Open WhatsApp Settings > Account > Privacy > Blocked > Add New....
2. Find the contact you want to block, then tap the contact.

Here are a couple of alternative options for blocking a contact:

• Open the chat with the contact, then tap the contact's name > Block Contact > Block or Report Contact > Report and Block, which will report and block the number.
• Swipe left the chat with the contact in your Chats tab, then tap More > Contact Info > Block Contact > Block or Report Contact > Report and Block, which will report and block the number.

Block an unknown phone number

To block an unknown phone number, you have a couple options:

• If this is the first time you've been contacted by that phone number, you can open the chat and tap Block > Block.
• Open the chat with the unknown phone number, then tap the phone number > Block Contact > Block or Report Contact > Report and Block, which will report and block the number.

Note:

• Blocked contacts will no longer be able to call you or send you messages.
• Your last seen, online, status updates, and any changes made to your profile photo will no longer be visible to contacts you've blocked.
• Blocking a contact won't remove them from your contacts list, nor will it remove you from the list on the contact's phone. To delete a contact, you must delete the contact from your phone's address book.
• If you're concerned whether a blocked contact will know if you're blocking them, please read this article.

Unblock a contact

1. Tap Settings > Account > Privacy > Blocked.
2. Swipe left on the contact's name.
   • Alternatively, tap Edit > the red minus sign icon.
3. Tap Unblock.

Here are a couple of alternative options for unblocking a contact:

• Open the chat with the contact, then tap the contact's name > Unblock Contact.
• Swipe left the chat with the contact in your Chats tab, then tap More > Contact Info > Unblock Contact.

Note: If you unblock a contact, you won't receive any messages, calls, and status updates the contact sent you during the time they were blocked.

Report a contact

1. Open the chat with the user you wish to report.
2. Tap the contact name, then tap Report Contact.
3. Tap Report And Block.

Note: Once reported, WhatsApp receives the most recent messages sent to you by a reported user or group, as well as information on your recent interactions with the reported user.

Report a View Once message

1. Open the view once photo or video.
2. Tap More Options in the bottom left corner.
3. Tap Report Contact.

To learn more about View Once messages, read this article.

Related resources:

How to block and unblock contacts: Android | KaiOS