The problem this solves
Not every message needs a branded sender name. When a customer needs to reply, use a number that can receive SMS.
Working cleanly
If messages only go out, a sender name may be sufficient. When replies or documentation are required, a receiving number is preferable.
What to check
Check whether the customer needs to reply, whether identification is required and whether the message must be stored in the system.
Next step
After deciding, connect the channel to email, a webhook or an API as needed.