About SMS Credits
SMS Credits in APSIS One are the medium of exchange for the sending of SMS campaigns. Account Owners and Admin Users must refill the credits in the account in order to send SMS periodically.
About Sender Name Registration
When creating and sending SMS tool activities with APSIS One, you are required to enter a sender name. This field is required in order for your recipients to know the message is coming from you, a legitimate source, after they provided consent.
However, not all countries and operators support custom sender names, and some require additional registration.