131026
WhatsApp error 131026 Message could not be delivered to this number
Needs action from you first
About the recipient
Sending and connection errors
Short answer
Undeliverable — the number isn't on WhatsApp or can't receive this message. Reasons can include that it is not a WhatsApp number, that its owner has not accepted the new Terms of Service and Privacy Policy, or that they are using an old version of the WhatsApp app.
Checked against Meta docs on
2026-08-24
Official source
- Sara Delivered
- Karl Failed 131026Message could not be delivered to this number
How to fix it
- Reach the customer by another channel and ask them to confirm they can message your WhatsApp Business number.
- Ask them to accept the latest Terms of Service and Privacy Policy (Settings > Help, or Settings > Application information).
- Ask them to update the WhatsApp app to the latest version.
Meta's official wording for this code
Description
Unable to deliver message. Reasons can include: The recipient phone number is not a WhatsApp phone number. Recipient has not accepted the new Terms of Service and Privacy Policy. Recipient using an old WhatsApp version; must use the following WhatsApp version or greater: Android: 2.21.15.15 SMBA: 2.21.15.15 iOS: 2.21.170.4 SMBI: 2.21.170.4 KaiOS: 2.2130.10 Web: 2.2132.6
Meta's suggested solution
Using a non-WhatsApp communication method, ask the WhatsApp user to: Confirm that they can actually send a message to your WhatsApp Business phone number. Confirm that they have accepted the latest Terms of Service (Settings > Help, or Settings > Application information will prompt them to accept the latest terms/policies if they haven't done so already) Update to the latest version of the WhatsApp client.
Other codes in the same category
Common questions about this code
What does WhatsApp error 131026 mean?
Undeliverable — the number isn't on WhatsApp or can't receive this message. Reasons can include that it is not a WhatsApp number, that its owner has not accepted the new Terms of Service and Privacy Policy, or that they are using an old version of the WhatsApp app.
Can I just send the message again?
Not before the cause is addressed. Complete the steps above, then send again.
Is this a problem with my account?
This is about the recipient, not your account.
Still hitting this error?
Send us the code and a screenshot and we will read it with you. With LetsBot, the reason each message failed appears next to it in the campaign report instead of a bare number.