Sometimes, when it's only one or a handful of members having deliverability issues, it's not a Community issue but something happening on their end with their service.
We've noticed most of these end up being one of the following:
- The member has poor cell service at the time they were sending.
- The cell carrier of the member is filtering messages.
This happens most frequently with Sprint/T-Mobile. The member can contact their cell carrier directly to have this filter removed. Currently, there is nothing we can do on our end to keep this from happening.
We recommend trying to reset the opt-in flow. This can be done by having them send the message "STOP", followed by a separate message with "START".