Help Center
Why did my marketing template fail to deliver but no error was returned?
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:
Other resources
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