In some cases, you might see a marketing template that is sent (or appears to be sent) to a customer but is never delivered, and no error code is returned for a failed delivery.

In the scenarios stated below, Meta will not provide an underlying reason due to privacy and policy reasons:

• The customer did not go online during the 30-day window in which messages are held for offline customers.

• The customer has blocked the business.

• The customer is in a restricted or sanctioned country.

Also see:

• Why did a user not receive my WhatsApp marketing template message?

• Can users opt out of receiving marketing templates from my business?