WhatsApp error 131026: The message could not be delivered to this number
The ArabyBot teamOfficial Meta partner · written from our own platform dataOn this page 5
The short answer
Error 131026 means Meta could not deliver to this particular customer: the number has no WhatsApp, its owner has not accepted WhatsApp's current terms, or runs a very old app version. Your account is fine and other customers receive your messages; do not keep resending to this number — reach them another way or check the number is right.
Why error 131026 appears
- The number is not on WhatsApp at all, or was written wrong (missing country code or an extra zero).
- The owner has not accepted WhatsApp's current terms and privacy policy.
- The app on the customer's phone is too old to receive this kind of message.
- The customer blocked your number on WhatsApp, and Meta returns this code without naming the block.
How to fix it, step by step
- Check the number's format
Write the full international form without a leading zero, e.g. 201012345678 for Egypt.
- Do not keep resending to the same number
Repeating does not change the outcome, and many undelivered messages hurt your number's quality rating at Meta.
- Reach the customer another way
A call, an SMS or an email, asking them to update WhatsApp or message you first.
What ArabyBot does about it
- The reason appears in plain words under the message itself in the inbox, on the web and in the phone app, with what to do — instead of Meta's raw English.
Related codes
- 131049Meta held back a marketing message from this customer
- 130403Your business blocked this customer on WhatsApp
- 131047More than 24 hours since the customer's last message
- 130472The customer is in a Meta marketing experiment
- 131050The customer stopped your marketing messages
- 131021The recipient is the sender's own number
Every WhatsApp error code, grouped by kind ←
Questions about error 131026
Does 131026 mean the customer blocked me?
Not necessarily; a block is one cause, but more often the number has no WhatsApp or was mistyped. Meta does not reveal which cause applies, to protect the customer's privacy.
Is this message on my bill?
No; an undelivered message is not billed.
Source: Meta's official error code reference, with what we see on our own platform.
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