Meta Tech ProviderWhatsApp error codes
WhatsApp error 131009: A value in the message isn't valid
WhatsApp or your platform. What it means, how to fix it, and whether to retry.
What it means
WhatsApp error 131009 means one of the values in the message isn't one WhatsApp accepts — often the phone number. Check the number; if it's right, the platform needs to look at it.
WhatsApp's title for it
“Parameter value is not valid” (131009)
Whose problem it is
WhatsApp or your platform
Why it happens
- A phone number in the wrong format.
- A value WhatsApp doesn't accept for that field.
How to fix error 131009
- Check the number is complete, with its country code.
- Report it to your platform if the number is correct.
Should you retry?
After correcting the value.
How to prevent it
- Store numbers in full international format.
Common questions
What's the right phone number format for WhatsApp?
The full international number with country code and no leading zero — for India, 91 followed by the ten-digit number.
How ThinnestAI shows it
On ThinnestAI every message WhatsApp doesn't deliver shows WhatsApp's own message first — word for word, with its code — and what it means underneath, on the broadcast and in the inbox. Undelivered messages aren't charged. See the WhatsApp Business API.