Once you are in the 'Send SMS' area of Message box, type in your desired message.
Do not copy and paste messages into here as applications tend to carry through hidden characters that are not excepted by mobile networks.
It is 1 credit per 160 characters with a maximum of 612 characters. At the bottom of the box you will see a credit counter which will change as you type and you can see exactly how many characters/credits you have used.
If you plan on sending this message again then simply click on the ‘Save to Message Library’ button underneath the credit counter, to save it for another time.
If you want to send a previously saved message you will notice that located on the left of the Message Box is a button called ‘Message’.
Click and a little pop up screen will appear with all your previously saved messages, select the one you need and then it will be automatically populated for you. You can still go in and edit the message.
Click on the link below to learn more about saving and sending messages.