What does it mean when a subscriber is unreachable?
When a subscriber's phone number is determined to be unreachable, the message will not be successfully delivered to them. An unreachable status essentially means that the message destination (the subscriber's mobile device) is unknown for a variety of reasons.
Why would a subscriber be unreachable?
A subscriber is determined to be unreachable due to the following reasons:
The destination number is unknown, may no longer exist, or may be mistyped
The device you are trying to reach is not on or does not have sufficient cell signal
The device cannot receive SMS/MMS, and/or the phone number belongs to a landline
There is an issue with the mobile carrier
What can be done about unreachable subscribers?
Blackbird tracks the deliverability of Connect campaigns for each individual subscriber. Subscribers who we find consistently have failed/undelivered messages are now manually unsubscribed from your Connect List if they reach a minimum of 7 failed campaigns that were attempted to be sent.
We do this so that you do not continue to use segments on unreachable numbers, and therefore, can instead use your segments towards subscribers that will receive your campaigns.
Each Connect campaign that has been sent will also display that campaign's deliverability metrics. Upon opening a sent campaign, you will be presented with the campaign overview, delivery statistics, and engagement metrics. This also includes the number of messages that were found to be Unreachable.