Which is best for you, sending from a text label or virtual mobile number?
When you send a message it must come from either a Text Label or a Virtual Mobile Number.
If sending from a text label it can not be any longer than 11 alphanumeric characters long (a-z, 0-9) and cannot contain spaces or special characters (!£%&? etc). It is also important to remember that you will not be able to receive replies. NB: When using a text label that is only 2 characters in length, some phones may not display it correctly (usually iphones). For this reason, we recommend testing any 2 character text labels across a range of devices.
In order to receive replies you will need a Virtual Mobile Number, which allows inbound responses directly to your Inbox within fastsms.