Braodcast failed to send

Hello John,

Thanks for reaching out.

When a broadcast shows Failed even though the phone number is valid and exists on WhatsApp, the cause is usually a Meta-side delivery restriction rather than an issue with the number itself. The two most common error codes are:

Error 131049 - Message Not Delivered to Maintain Healthy Ecosystem Engagement: Meta blocks the send when the same template is sent repeatedly to a user who hasn't replied, or when the recipient has hit their marketing message limits. This is Meta's anti-spam throttling and cannot be overridden by Pabbly or the WhatsApp Business API.

Error 131026 - Message Undeliverable: This can happen even for a valid number if the recipient hasn't accepted WhatsApp's latest Terms of Service, is on an outdated WhatsApp version, or has never interacted with your business (Meta anti-spam may restrict for 24-48 hours).

To improve delivery:
1. Send only to users who have opted in and interacted with your business.
2. Avoid sending the same marketing template repeatedly to non-responsive contacts - rotate template content.
3. Space out and stagger your sends, starting with smaller batches.
4. Make sure your template is approved and your WABA is in good standing.

Also note that a Failed status often applies only to a subset of contacts, not the whole campaign. You can open the broadcast stats to see the per-contact breakdown, and use Resend Failed to retry (up to two retry attempts).

If, after these checks, a large share of valid and engaged numbers still fail, please share 3-5 specific recipient numbers along with your Pabbly-registered email so we can inspect the WABA-level logs.

How cand I delete or recall an error message that is already sent to hundreds of people?

Hello John,

Unfortunately, Meta’s official WhatsApp Business API does not provide an option to delete, recall, or unsend messages once they have been sent or delivered to recipients.

Please let us know if you have any other questions.